Landscape Architect Registration Examination (LARE) — Questions and Answers

Question 1: What is 'glare' in landscape lighting design and how is it controlled?

Reflection from water features that causes overexposure in photographs; controlled by polarized lenses
Excessive brightness in a fixture that makes nearby plants grow faster; controlled by dimming
The flicker effect from low-quality LED fixtures; controlled by using quality drivers
Uncomfortable brightness from a light source that reduces visibility and creates discomfort; controlled by shielding, proper aiming, and appropriate lumen levels (Correct answer)

Correct answer: Uncomfortable brightness from a light source that reduces visibility and creates discomfort; controlled by shielding, proper aiming, and appropriate lumen levels

Glare is excessive, uncontrolled brightness from a light source that creates visual discomfort and reduces the ability to see; controlled through shielded fixtures, correct lumen selection, and proper aiming.

Question 2: What is the correct disposal method for pesticide containers after the product is fully used?

Leave the container at the job site
Refill with water for the next application
Dispose in regular household trash immediately
Triple-rinse, puncture, and dispose according to label instructions and local regulations (Correct answer)

Correct answer: Triple-rinse, puncture, and dispose according to label instructions and local regulations

Empty pesticide containers must be triple-rinsed with rinse water added to spray tank, punctured to prevent reuse, and disposed of according to the product label and local laws.

Question 3: What is 'stormwater credit' in the context of sustainable landscape design and local regulations?

A carbon credit earned by planting trees
A tax deduction for installing rain barrels
A financial rebate for homeowners who reduce lawn irrigation
A reduction in stormwater utility fees or permit requirements granted to properties that manage runoff on-site through green infrastructure features (Correct answer)

Correct answer: A reduction in stormwater utility fees or permit requirements granted to properties that manage runoff on-site through green infrastructure features

Many US municipalities offer stormwater credits as fee reductions to property owners who install green infrastructure like rain gardens, bioswales, or permeable paving that reduces runoff leaving the property.

Question 4: What is the purpose of overseeding a cool-season lawn in the fall?

Replace warm-season grass with cool-season varieties
Control weeds by smothering them with seed
Apply seed after herbicide application
Thicken thin turf by sowing new grass seed into existing lawn (Correct answer)

Correct answer: Thicken thin turf by sowing new grass seed into existing lawn

Fall overseeding introduces new grass seed into thin or damaged areas of a cool-season lawn when growing conditions are ideal for germination and establishment.

Question 5: What soil condition does a low pH (below 5.5) most commonly cause in landscape plants?

Root burn
Excessive drainage
Nitrogen toxicity
Nutrient deficiencies due to reduced availability of key elements (Correct answer)

Correct answer: Nutrient deficiencies due to reduced availability of key elements

At pH below 5.5, phosphorus, calcium, and magnesium become less available, causing nutrient deficiencies even when present in the soil.

Question 6: After identifying the natural circumstances on a lot, the designer should next determine the:

The position of a neighbor's residence
The cultural characteristics of the lot
The lot's man-made features (Correct answer)
The house's location

Correct answer: The lot's man-made features

In a thorough site analysis, after understanding the natural elements like topography, soil, and existing vegetation, the next logical step is to identify all man-made features. This includes structures, utilities, fences, paths, and any other existing human-made elements that will influence the design and placement of new landscape components.

Question 7: Examine your website to see where __________.

There is a requirement for shade and wind protection. (Correct answer)
Plants should be relocated.
Intersections of street traffic patterns.
The soil line is located on the foundation.

Correct answer: There is a requirement for shade and wind protection.

A crucial step in landscape site analysis is to assess environmental factors like sun exposure and wind patterns. Identifying areas that need shade (e.g., for comfort or to reduce cooling costs) or wind protection (e.g., for outdoor living spaces or sensitive plants) allows the designer to strategically place trees, shrubs, or structures to mitigate these conditions.

Question 8: What is 'soil compaction' and how does it affect landscape plants?

Over-fertilization that burns plant roots
Excessive salt buildup in the root zone
Compression of soil particles that reduces pore space, limiting air, water, and root penetration (Correct answer)
The hardening of soil surface due to sun exposure

Correct answer: Compression of soil particles that reduces pore space, limiting air, water, and root penetration

Soil compaction reduces the pore spaces between soil particles, limiting oxygen, water infiltration, and the ability of roots to penetrate and grow.

Question 9: Which landscape design principle involves repeating plants, colors, or forms throughout a design to create visual unity?

Rhythm (Correct answer)
Proportion
Balance
Contrast

Correct answer: Rhythm

Rhythm uses repetition of design elements such as plant species, color, texture, or form to create a cohesive, flowing visual pattern.

Question 10: What is the term for outdoor flooring that is level with or slightly above grade surrounding a pool?

Hardscape apron
Pool deck (Correct answer)
Grade-level terrace
Patio surround

Correct answer: Pool deck

A pool deck is the paved surface surrounding a pool, designed to drain water away from the pool edge and provide safe, slip-resistant footing.

Question 11: An irrigation system's 'precipitation rate' refers to:

The frequency of irrigation cycles per week
The amount of rainfall a site receives annually
The rate (inches per hour) at which a sprinkler system applies water (Correct answer)
The water pressure at the main supply line

Correct answer: The rate (inches per hour) at which a sprinkler system applies water

Precipitation rate is the amount of water applied by an irrigation system per unit time (inches per hour), which must be matched to soil infiltration rate to prevent runoff.

Question 12: What is a green roof or vegetated roof and what environmental benefits does it provide?

Green-colored roofing material for heat reflection
Solar panel system combined with rooftop irrigation
Rooftop greenhouse for food production
Rooftop covered with growing medium and plants; reduces runoff, insulates building, and reduces heat island effect (Correct answer)

Correct answer: Rooftop covered with growing medium and plants; reduces runoff, insulates building, and reduces heat island effect

A green roof supports a layer of growing medium and vegetation on a waterproofed roof structure, capturing rainfall, insulating the building, and reducing urban heat island temperatures.

Question 13: Which EPA program helps consumers identify water-efficient irrigation products and practices?

Green Building Initiative
EnergyStar
WaterSense (Correct answer)
LEED

Correct answer: WaterSense

EPA's WaterSense program labels water-efficient irrigation controllers, sprinkler heads, and other products that meet efficiency standards.

Question 14: What is the purpose of a planting plan within the overall design?

To choose the mailbox style
To calculate the project's tax
To list the construction crew names
To specify plant species, quantities, and exact locations (Correct answer)

Correct answer: To specify plant species, quantities, and exact locations

A planting plan documents exactly what goes where for accurate installation.

Question 15: What is head-to-head coverage in sprinkler system design?

Overlapping spray from opposite heads
Sprinkler heads aimed directly at each other
Each sprinkler's throw radius reaches the adjacent sprinkler head (Correct answer)
Two sprinkler systems on the same zone

Correct answer: Each sprinkler's throw radius reaches the adjacent sprinkler head

Head-to-head coverage means each sprinkler is spaced so its water throw reaches the next head, ensuring 100 percent coverage and uniform water distribution.

Question 16: Which of the following is a recognized benefit of maintaining healthy urban tree canopy in US cities?

Elimination of need for stormwater infrastructure
Reduction in property values due to maintenance costs
Reduction of urban heat island effect and energy costs (Correct answer)
Increased surface water runoff

Correct answer: Reduction of urban heat island effect and energy costs

Urban tree canopy reduces the heat island effect by shading surfaces and releasing moisture through transpiration, lowering cooling energy costs and improving air quality.

Question 17: What does 'topping' a tree refer to, and why is it considered poor arboricultural practice?

Indiscriminate cutting of main branches, which causes decay, weak regrowth, and structural failure (Correct answer)
Applying fertilizer to the canopy
Transplanting a tree by lifting it from the top
Removing the top 10% of a hedge

Correct answer: Indiscriminate cutting of main branches, which causes decay, weak regrowth, and structural failure

Topping creates large wounds that trees cannot properly close, leading to decay, pest infestation, and hazardous weak growth.

Question 18: Which USDA Plant Hardiness Zone covers most of Florida?

Zone 7-8
Zone 3-4
Zone 9-10 (Correct answer)
Zone 5-6

Correct answer: Zone 9-10

Most of Florida falls within USDA Hardiness Zones 9–10, supporting subtropical and tropical plants.

Question 19: What does precipitation rate mean in the context of irrigation design?

The amount of rainfall recorded in a season
The frequency of irrigation cycles
The water pressure at the sprinkler head
The rate at which water is applied to the landscape in inches per hour (Correct answer)

Correct answer: The rate at which water is applied to the landscape in inches per hour

Precipitation rate is the depth of water applied by an irrigation system per unit time, which must match the soil's infiltration rate to prevent runoff.

Question 20: When designing for a small yard, which technique helps it feel larger?

Filling it with large dense trees
Using only one giant focal feature
Adding tall solid fences on all sides
Using diagonal lines and borrowed views (Correct answer)

Correct answer: Using diagonal lines and borrowed views

Diagonal sightlines and borrowing distant views visually expand a small space.

Question 21: What does an ET-based or smart irrigation controller use to adjust watering schedules?

Evapotranspiration data from weather sensors (Correct answer)
Rainfall totals from a rain gauge
Time-of-day scheduling only
Soil moisture readings only

Correct answer: Evapotranspiration data from weather sensors

ET-based controllers use local evapotranspiration data combining temperature, humidity, wind, and solar radiation to automatically adjust irrigation run times.

Question 22: ________ are organically adaptable to site conditions and should be used in the design whenever possible.

Most trees
Native Plants (Correct answer)
All grasses
Introduced species

Correct answer: Native Plants

Native plants are species that naturally occur in a particular region or ecosystem. They are inherently adapted to the local climate, soil conditions, and wildlife, making them more resilient and requiring less water, fertilizer, and pest control compared to non-native species. Incorporating native plants promotes ecological balance and sustainable landscape design.

Question 23: What is 'backflow prevention' in a landscape irrigation system?

A filter that prevents debris from entering sprinkler heads
A valve that prevents water from flowing backward from the irrigation system into the potable water supply (Correct answer)
A pressure regulator that prevents pipe bursting
A system that recycles runoff water back into the irrigation tank

Correct answer: A valve that prevents water from flowing backward from the irrigation system into the potable water supply

Backflow prevention devices stop contaminated irrigation water from flowing backward into the drinking water supply, required by most US plumbing codes.

Question 24: Which drainage structure collects surface water through a grated inlet and directs it into underground pipes?

Swale
Catch basin (Correct answer)
French drain
Bioswale

Correct answer: Catch basin

A catch basin is a below-grade structure with a grated surface inlet that intercepts runoff and channels it into an underground pipe system.

Question 25: Which of the following best describes 'scale' in landscape design?

The acidity of the soil
The weight of garden soil
The number of plant species used
The size relationship between elements and their surroundings (Correct answer)

Correct answer: The size relationship between elements and their surroundings

Scale refers to the relative size of features compared to each other and the space.

Question 26: What is the ideal soil texture for most landscape plantings, balancing drainage and water retention?

Silt
Sand
Loam (Correct answer)
Clay

Correct answer: Loam

Loam, a balanced mixture of sand, silt, and clay, provides ideal porosity, drainage, and water-holding capacity for most landscape plants.

Question 27: What is the purpose of 'winterizing' an irrigation system in freeze-prone US climates?

To update the controller schedule
To blow out all water from the system with compressed air to prevent pipe and component freeze damage (Correct answer)
To adjust seasonal run times
To replace worn sprinkler heads

Correct answer: To blow out all water from the system with compressed air to prevent pipe and component freeze damage

Blowout purges all water from pipes, heads, and valves so freezing temperatures cannot expand the water and crack components.

Question 28: Which soil amendment is commonly added to heavy clay soil to improve drainage and aeration?

Lime
Peat moss alone
Coarse sand or grit, along with organic matter (Correct answer)
Topsoil

Correct answer: Coarse sand or grit, along with organic matter

Coarse sand improves drainage by increasing pore space, while organic matter improves overall soil structure in clay.

Question 29: Which factor is most important to assess for sun exposure during site analysis?

The direction the area faces and shadow patterns throughout the day (Correct answer)
The number of nearby streetlights
The color of the house siding
The width of the driveway

Correct answer: The direction the area faces and shadow patterns throughout the day

Orientation and shade patterns determine which plants will thrive in each area.

Question 30: When thinking about how to develop the site, strive to keep as much star________ as feasible.

Turfgrass (Correct answer)
Rock
Existing vegetation
Grade change

Correct answer: Turfgrass

Maintaining existing turfgrass is often a practical and cost-effective approach in landscape development. It helps preserve established ground cover, reduces the need for extensive new planting, and can contribute to soil stability and immediate aesthetic appeal. This minimizes disruption and resource use during site development.

Question 31: Which material is most commonly used for edging to keep mulch beds and paver installations separated?

PVC pipe
Steel, aluminum, or plastic landscape edging (Correct answer)
Concrete pavers set vertically
Pressure-treated lumber

Correct answer: Steel, aluminum, or plastic landscape edging

Steel, aluminum, or flexible plastic landscape edging is installed at the perimeter of beds and hardscape to create a clean border and prevent mulch or soil migration.

Question 32: What is the purpose of a 'change order' in a landscape project?

A document replacing one contractor with another during a project
A client's request to change the payment schedule
A form submitted to the local building department for plan revisions
A written agreement documenting modifications to the original scope, cost, or timeline that both parties approve before work proceeds (Correct answer)

Correct answer: A written agreement documenting modifications to the original scope, cost, or timeline that both parties approve before work proceeds

A change order is a written document that formally records and authorizes any modifications to the agreed scope of work, cost, or timeline, protecting both the contractor and client from disputes.

Question 33: What is the primary benefit of leaving ornamental grass clumps uncut until late winter or early spring?

Prevents seed spread
Provides winter interest and habitat for wildlife, with old foliage protecting the crown from cold (Correct answer)
Reduces irrigation needs
Prevents insects from nesting

Correct answer: Provides winter interest and habitat for wildlife, with old foliage protecting the crown from cold

The dried foliage of ornamental grasses provides seasonal beauty, winter bird habitat, and crown protection until new growth begins.

Question 34: What is the recommended mulch depth for most landscape planting beds?

6 to 8 inches
10 inches or more
2 to 4 inches (Correct answer)
Less than 1 inch

Correct answer: 2 to 4 inches

A 2 to 4 inch layer of mulch suppresses weeds, retains moisture, moderates soil temperature, and adds organic matter without suffocating roots.

Question 35: What is the main goal of the grading phase in landscape construction?

To shape the land for proper drainage and usable areas (Correct answer)
To select ornamental plant varieties
To choose paint colors for fences
To install decorative lighting

Correct answer: To shape the land for proper drainage and usable areas

Grading controls water flow and creates level, functional spaces.

Question 36: What is a bioswale?

A type of vegetated retaining wall used on steep slopes
An underground cistern for collecting and storing rainwater for reuse
A vegetated channel that slows, filters, and infiltrates stormwater using plants and engineered soils (Correct answer)
A decorative water feature designed to mimic a natural stream channel

Correct answer: A vegetated channel that slows, filters, and infiltrates stormwater using plants and engineered soils

A bioswale is a stormwater management feature that uses vegetation, compost, and porous soils to slow runoff velocity, filter pollutants, and promote groundwater recharge.

Question 37: What term describes water that flows across the soil surface rather than infiltrating into the ground?

Transpiration
Runoff (Correct answer)
Percolation
Leaching

Correct answer: Runoff

Runoff is water that flows over the ground surface when precipitation exceeds the soil's infiltration capacity or when the surface is impervious.

Question 38: What does the term ecosystem services mean in the context of landscape value?

Benefits that natural landscape elements provide to humans, such as clean air, water filtration, and climate regulation (Correct answer)
Services provided by landscape contractors using ecological methods
Pest management services using natural predators
Government programs that fund sustainable landscaping

Correct answer: Benefits that natural landscape elements provide to humans, such as clean air, water filtration, and climate regulation

Ecosystem services are the direct and indirect benefits that functioning ecosystems and landscape elements such as trees and wetlands provide to human well-being at no cost.

Question 39: What is 'permeable paving' and what environmental benefit does it provide?

Lightweight paving suitable for rooftop gardens
Paving that changes color with temperature
Paving made from recycled materials
Porous paving that allows water to infiltrate through the surface, reducing stormwater runoff (Correct answer)

Correct answer: Porous paving that allows water to infiltrate through the surface, reducing stormwater runoff

Permeable paving allows stormwater to infiltrate through the surface into the ground below, reducing runoff volume, recharging groundwater, and filtering pollutants.

Question 40: What does 'N-P-K' stand for on a fertilizer label?

Nitrogen-Potassium-Kale
Nitrogen-Phosphorus-Potassium (Correct answer)
Nitrate-Phosphate-Kelp
Nutrient-pH-Kelp

Correct answer: Nitrogen-Phosphorus-Potassium

N-P-K represents the three primary macronutrients — nitrogen, phosphorus, and potassium — listed as percentages by weight.

Question 41: What is the urban heat island effect and how can landscape design mitigate it?

Heat generated by irrigation systems in cities
Increased pest pressure in urban environments
Cities are hotter than surrounding rural areas; mitigated by trees and reflective surfaces (Correct answer)
Soil temperature rise from impermeable pavement

Correct answer: Cities are hotter than surrounding rural areas; mitigated by trees and reflective surfaces

The urban heat island effect occurs when built surfaces absorb and radiate heat; strategic tree planting and cool paving materials reduce ambient temperatures significantly.

Question 42: In landscape design, what does the principle of 'unity' primarily refer to?

Planting in straight rows only
Using only one plant species throughout
Keeping the entire yard the same height
A sense of cohesion where all elements work together as a whole (Correct answer)

Correct answer: A sense of cohesion where all elements work together as a whole

Unity is the sense that all parts of the design relate and feel like a cohesive whole.

Question 43: What does 'layered lighting' mean in a comprehensive landscape lighting design?

Stacking landscape lighting fixtures on mounting poles of varying heights
Combining different lighting techniques (accent, ambient, task, safety) to create a balanced, multidimensional nighttime landscape (Correct answer)
Using different colored lights at different levels of the landscape
Installing multiple fixtures at different soil depths

Correct answer: Combining different lighting techniques (accent, ambient, task, safety) to create a balanced, multidimensional nighttime landscape

Layered lighting combines multiple techniques — accent, ambient, task, and safety lighting — to create depth, interest, and functional illumination throughout the landscape rather than relying on a single type of fixture.

Question 44: Which factor is MOST important to assess before selecting plants for a bed?

The neighbor's plant choices
The day of the week planted
The color of the house roof
Sunlight exposure and soil conditions (Correct answer)

Correct answer: Sunlight exposure and soil conditions

Matching plants to available light and soil ensures they thrive long-term.

Question 45: What does 'daylighting' a drain mean in landscape design?

Using solar-powered pumps to move water through underground drainage lines
Installing transparent covers to allow visual inspection of drain pipes
Extending a drainage pipe until it opens to the surface at a lower elevation (Correct answer)
Orienting drainage channels to receive sunlight and prevent biological growth

Correct answer: Extending a drainage pipe until it opens to the surface at a lower elevation

Daylighting refers to extending an underground drainage pipe to the surface at a lower point so water can exit the system by gravity into a vegetated area or waterway.

Question 46: Which edging material is most commonly used to create a clean border between a lawn and a planting bed?

Gravel mulch
Concrete curbing only
Steel or aluminum landscape edging (Correct answer)
Plastic sheeting

Correct answer: Steel or aluminum landscape edging

Steel or aluminum landscape edging provides a durable, flexible, and nearly invisible border that cleanly separates lawn grass from mulched planting beds.

Question 47: What type of retaining wall system uses interlocking concrete blocks without mortar?

Segmental retaining wall (Correct answer)
Cantilever wall
Gravity wall
Sheet pile wall

Correct answer: Segmental retaining wall

Segmental retaining walls use dry-stacked, interlocking concrete blocks that rely on the weight and batter (backward lean) of the system for structural stability.

Question 48: A ___________ may be one of the main areas of development.

All of the above (Correct answer)
Playground for children
Area for outdoor entertainment
Work or service sector

Correct answer: All of the above

In landscape design, main areas of development are typically categorized by their function. This can include areas for outdoor entertainment (patios, decks), playgrounds for children, and work or service sectors (utility areas, storage). A comprehensive design often incorporates several of these functional zones to meet the client's diverse needs.

Question 49: What is 'overhead' in landscape business cost accounting?

The cost of tall tree installation requiring cranes or equipment
The markup percentage added to material costs for profit
Indirect business expenses not tied to a specific job (insurance, office rent, vehicles, admin salaries) that must be covered by project revenue (Correct answer)
Expenses billed directly to each client as a line item

Correct answer: Indirect business expenses not tied to a specific job (insurance, office rent, vehicles, admin salaries) that must be covered by project revenue

Overhead consists of indirect operating costs — insurance, vehicles, office expenses, marketing, administrative staff — that support the business but aren't directly attributable to a specific project.

Question 50: Which soil amendment is most commonly recommended to lower soil pH for acid-loving plants like azaleas?

Agricultural lime
Gypsum
Elemental sulfur (Correct answer)
Perlite

Correct answer: Elemental sulfur

Elemental sulfur is oxidized by soil bacteria to produce sulfuric acid, gradually lowering soil pH to create acidic conditions preferred by azaleas and blueberries.

Question 51: What is 'accounts receivable' (AR) in a landscape business and why is managing it critical?

The total revenue target set for the fiscal year
The balance in the business checking account available for operations
Money owed to the business by clients for completed work, critical to manage because delayed collection creates cash flow problems that can threaten business operations (Correct answer)
Money the business owes to suppliers and vendors

Correct answer: Money owed to the business by clients for completed work, critical to manage because delayed collection creates cash flow problems that can threaten business operations

Accounts receivable is money owed to the landscape business by clients for services rendered but not yet paid; poor AR management leads to cash flow shortfalls that can prevent meeting payroll, purchasing materials, or paying bills.

Question 52: What does 'existing grade' refer to in landscape design documents?

The current elevation of the ground surface before any grading work begins (Correct answer)
The slope of the driveway
The condition of existing hardscape
The quality rating of existing plants

Correct answer: The current elevation of the ground surface before any grading work begins

Existing grade is the natural or previously graded ground elevation documented in a base survey, from which proposed changes are measured.

Question 53: Which growth habit describes a plant that completes its life cycle in one growing season?

Evergreen
Biennial
Perennial
Annual (Correct answer)

Correct answer: Annual

Annuals germinate, flower, set seed, and die within a single growing season.

Question 54: What is 'polymeric sand' used for in paver installations?

A sand-based sealant applied to the surface of finished pavers
A special sand used to level the base course beneath pavers
A sand and polymer binder mixture swept into paver joints that hardens to resist erosion and weed growth (Correct answer)
A colored sand mixed into concrete for decorative driveways

Correct answer: A sand and polymer binder mixture swept into paver joints that hardens to resist erosion and weed growth

Polymeric sand contains a polymer binder that, when activated with water, hardens in the joints between pavers to resist erosion, insect intrusion, and weed germination.

Question 55: When creating a base map, why is it important to note existing utilities?

To determine plant color schemes
To increase the property's resale value
To calculate mulch quantities
To avoid damaging underground lines during excavation (Correct answer)

Correct answer: To avoid damaging underground lines during excavation

Marking utilities prevents costly and dangerous strikes during digging.

Question 56: What is a 'setback' in the context of US hardscape design?

Distance between stepping stones
Amount of slope on a driveway
Required distance from a structure to the property line (Correct answer)
The depth of a retaining wall footing

Correct answer: Required distance from a structure to the property line

A setback is the minimum distance a structure or paved surface must be located from property lines, as required by local zoning ordinances.

Question 57: What is the first step a landscape designer does when conducting a site analysis for a homeowner to identify existing features?

Determine the house's position on the property. (Correct answer)
Determine the site's cultural features.
Determine the site's man-made characteristics.
Determine the proximity of the place to public transit.

Correct answer: Determine the house's position on the property.

The house is typically the central and most dominant existing feature on a residential property. Therefore, the very first step in a site analysis is to accurately determine its exact position, orientation, and relationship to the property lines and other existing elements. This establishes the primary reference point for all subsequent design decisions.

Question 58: What is the purpose of organic matter (compost) in landscape soil preparation?

To raise soil pH only
To kill existing weeds
To reduce soil volume
To improve soil structure, water retention, drainage, and nutrient availability (Correct answer)

Correct answer: To improve soil structure, water retention, drainage, and nutrient availability

Organic matter improves both drainage in clay soils and water retention in sandy soils while feeding soil microorganisms.

Question 59: What is 'fertilizer burn' and what causes it?

Root damage from overly acidic soil
Damage to plant tissue caused by applying too much fertilizer, which draws water out of roots through osmosis (Correct answer)
Leaf scorch from sprinkler overspray
Leaf discoloration from sun scorch

Correct answer: Damage to plant tissue caused by applying too much fertilizer, which draws water out of roots through osmosis

Excess fertilizer salts increase soil osmotic concentration, pulling water out of plant roots and causing wilting and tissue death.

Question 60: What is the correct time of year to prune spring-flowering shrubs like azaleas in the US?

Midsummer
Early spring before bloom
Late fall before frost
Immediately after flowering (Correct answer)

Correct answer: Immediately after flowering

Spring-flowering shrubs set their flower buds in summer and fall on old wood, so pruning immediately after bloom avoids removing next year's buds.

Question 61: What does 'circulation' refer to in landscape planning?

How people move through and between spaces (Correct answer)
How water drains underground
How roots spread in soil
How air moves through plants

Correct answer: How people move through and between spaces

Circulation is the movement of people via paths and walkways through the landscape.

Question 62: What is a berm in landscape design?

A drainage channel constructed along a property boundary
A mound of soil built up above the surrounding grade (Correct answer)
A shallow depression used to capture and hold rainwater
A low stone or brick retaining wall along a garden border

Correct answer: A mound of soil built up above the surrounding grade

A berm is a compacted mound of soil raised above the surrounding grade, used to redirect drainage, provide visual screening, or add topographic interest.

Question 63: What term refers to a group of the same plant species massed together for visual impact?

Specimen planting
Foundation planting
Accent planting
Mass planting (Correct answer)

Correct answer: Mass planting

Mass planting of a single species creates bold, unified sweeps of color or texture that read strongly from a distance.

Question 64: The method of creating a landscape design will be described in detail below.

Assist you in understanding, organizing, and developing the site for optimal usage and enjoyment.
Make a visual connection between the house/business and the location.
Reduce the overall level of maintenance that will be necessary.
All of the above (Correct answer)

Correct answer: All of the above

The process of creating a landscape design is multifaceted. It aims to establish a visual connection between the built environment and the natural surroundings, reduce future maintenance requirements through thoughtful plant and material selection, and ultimately organize the site for optimal functionality and enjoyment by its users. All these aspects are integral to a detailed design method.

Question 65: What is 'carbon sequestration' in the context of landscape design?

Measuring carbon content in soil for fertilizer planning
Reducing carbon emissions from landscape equipment
Offsetting landscape maintenance fuel use with carbon credits
The process by which plants and soils capture and store atmospheric CO₂, contributing to climate change mitigation (Correct answer)

Correct answer: The process by which plants and soils capture and store atmospheric CO₂, contributing to climate change mitigation

Carbon sequestration in landscapes refers to the capture and long-term storage of atmospheric carbon dioxide in plant biomass and soil organic matter, helping offset greenhouse gas emissions.

Question 66: When should hardscape elements typically be installed relative to planting?

Before planting, to avoid damaging new plants (Correct answer)
Only in the final winter month
Simultaneously with seeding the lawn
After all plants are fully grown

Correct answer: Before planting, to avoid damaging new plants

Hardscaping first prevents heavy equipment from harming installed plants.

Question 67: What is 'sheet mulching' (lasagna composting) used for in sustainable landscape installation?

A method of applying mulch to steep slopes to prevent erosion
Layering different types of mulch for aesthetic effect
Applying fertilizer in thin layers to prevent burn
Smothering existing turf or weeds with overlapping layers of cardboard and mulch to create new planting beds without tilling (Correct answer)

Correct answer: Smothering existing turf or weeds with overlapping layers of cardboard and mulch to create new planting beds without tilling

Sheet mulching uses layers of cardboard and organic mulch to suppress existing vegetation without herbicides or tilling, allowing it to decompose and improve soil as plants are established above it.

Question 68: What is the primary advantage of using native plants in a US landscape design?

Lower initial purchase cost
Adapted to local climate and support local wildlife (Correct answer)
Faster growth than exotic plants
Brighter flower colors

Correct answer: Adapted to local climate and support local wildlife

Native plants evolved with local climate, soils, and wildlife, requiring less water, fertilizer, and pest control while providing habitat for native insects and birds.

Question 69: What is 'composting' and how does it support sustainable landscape management?

A water treatment process for gray water reuse in irrigation
The biological decomposition of organic materials into humus, recycling nutrients back into the landscape (Correct answer)
The process of testing soil for contamination before planting
A chemical process to speed decomposition using synthetic accelerants

Correct answer: The biological decomposition of organic materials into humus, recycling nutrients back into the landscape

Composting converts organic landscape waste into nutrient-rich humus that improves soil health, reducing the need for synthetic fertilizers and diverting waste from landfills.

Question 70: What is the purpose of 'core aeration' on a compacted turf lawn?

To control thatch-eating insects
To apply fertilizer evenly
To overseed bare patches
To remove plugs of soil to reduce compaction and improve air, water, and nutrient penetration (Correct answer)

Correct answer: To remove plugs of soil to reduce compaction and improve air, water, and nutrient penetration

Core aeration extracts small plugs of soil, creating channels that allow air, water, and roots to penetrate compacted ground.

Question 71: A well-designed landscape can help with ____________.

Reduce energy consumption and expenditures.
Reduce the amount of fertilizer and insecticides required.
Reducing the amount of irrigation water used
All of the above (Correct answer)

Correct answer: All of the above

A well-designed landscape offers multiple benefits beyond aesthetics. Strategic planting can reduce energy consumption by providing shade and windbreaks, decrease irrigation needs through drought-tolerant plant selection, and minimize the use of fertilizers and insecticides by choosing native or disease-resistant species. Therefore, all the listed options are positive outcomes.

Question 72: Why are 'curved bed lines' often used in informal landscape designs?

They guarantee symmetry
They reduce plant growth
They are required by building codes
They create a natural, relaxed, flowing feel (Correct answer)

Correct answer: They create a natural, relaxed, flowing feel

Gentle curves mimic nature and give informal designs a relaxed, flowing character.

Question 73: What is impervious surface ratio and how does it affect stormwater management compliance?

Required ratio of green space to building footprint
Percentage of a site covered by impervious surfaces; high ratios increase runoff requiring mitigation (Correct answer)
Ratio of plant material cost to hardscape cost in a landscape budget
Amount of concrete versus stone in a hardscape design

Correct answer: Percentage of a site covered by impervious surfaces; high ratios increase runoff requiring mitigation

Impervious surface ratio measures what percentage of a site is covered by impermeable materials; local regulations often cap this ratio and require stormwater management for high-ratio sites.

Question 74: Which line type in a landscape tends to create a calm, restful feeling?

Sharp diagonal lines
Jagged zigzag lines
Horizontal lines (Correct answer)
Steeply vertical lines

Correct answer: Horizontal lines

Horizontal lines suggest stability and rest, creating a calming effect.

Question 75: Which landscape condition is indicated by a high water table near the soil surface?

Sandy soil texture
Poor drainage and risk of root suffocation for non-wetland plants (Correct answer)
High nutrient availability
Drought stress potential

Correct answer: Poor drainage and risk of root suffocation for non-wetland plants

A high water table saturates the soil root zone, depriving roots of oxygen and causing root rot in non-adapted plants.

Question 76: What is the purpose of a pressure-compensating drip emitter?

Increase output at the end of long drip lines
Prevent backflow through the emitter
Deliver a consistent flow rate despite pressure variations in the line (Correct answer)
Regulate soil moisture automatically

Correct answer: Deliver a consistent flow rate despite pressure variations in the line

Pressure-compensating emitters maintain a constant flow rate across a wide range of inlet pressures, ensuring uniform distribution even on slopes or long runs.

Question 77: What is the Landscape Industry Certified (LIC) credential in the US landscape industry?

A pesticide applicator license required by federal law
A LEED accreditation specific to landscape contractors
A voluntary professional certification from the National Association of Landscape Professionals (NALP) that validates competency in landscape installation and maintenance (Correct answer)
A state-issued contractor's license required to operate a landscape business

Correct answer: A voluntary professional certification from the National Association of Landscape Professionals (NALP) that validates competency in landscape installation and maintenance

The Landscape Industry Certified (LIC) designation is a voluntary professional credential administered by NALP that tests and validates practical and technical competency in landscape installation and maintenance.

Question 78: What pest is responsible for the distinctive serpentine tunnels visible in leaves of landscape plants?

Aphids
Spider mites
Scale insects
Leafminer larvae (Correct answer)

Correct answer: Leafminer larvae

Leafminers are larvae of flies, moths, or beetles that tunnel between leaf surfaces, leaving characteristic winding pale trails visible from outside.

Question 79: Which type of concrete paver pattern is known for its superior interlocking strength and is commonly used for driveways?

Basketweave
Stack bond
Herringbone (45° or 90°) (Correct answer)
Running bond

Correct answer: Herringbone (45° or 90°)

The herringbone pattern creates superior interlock between pavers, distributing loads more effectively and resisting lateral movement, making it ideal for driveways and high-traffic areas.

Question 80: What is the term for the uneven appearance of brick or stone caused by inconsistent mortar joint width?

Weeping
Spalling
Poor coursing or misalignment (Correct answer)
Efflorescence

Correct answer: Poor coursing or misalignment

Poor coursing results from inconsistent mortar joint widths, creating an unprofessional, uneven appearance in masonry work.

Question 81: What is 'lien waiver' documentation used for in landscape contracting?

A warranty disclaimer limiting the contractor's liability for plant mortality
A document signed by a contractor or subcontractor confirming they have been paid and waiving their right to place a mechanic's lien on the property (Correct answer)
A zoning waiver allowing landscape work in restricted areas
A document waiving a contractor's right to increase prices after contract signing

Correct answer: A document signed by a contractor or subcontractor confirming they have been paid and waiving their right to place a mechanic's lien on the property

A lien waiver is a document signed by contractors or suppliers confirming payment receipt, releasing their right to file a mechanic's lien against the property owner's property.

Question 82: What does LEED stand for and how does it relate to landscape design?

Leadership in Energy and Environmental Design — a green building certification that includes site and landscape criteria (Correct answer)
Low-Energy Efficient Design — a lighting standard for landscapes
Landscape Ecology and Environmental Design — a landscape certification program
Land Erosion and Environmental Damage — a regulatory framework

Correct answer: Leadership in Energy and Environmental Design — a green building certification that includes site and landscape criteria

LEED is the US Green Building Council's green building rating system; it includes significant landscape and site credits for water efficiency, habitat, and heat island reduction.

Question 83: What is the role of a 'focal point' in a landscape design?

To block all sunlight
To hide the house entrance
To capture attention and anchor the composition (Correct answer)
To reduce plant variety

Correct answer: To capture attention and anchor the composition

A focal point is a dominant feature that draws and holds the viewer's attention.

Question 84: What is 'grazing' in landscape lighting design?

Installing lights at pasture-level for rural properties
Using wide-beam floodlights to illuminate large open lawn areas
Lighting a garden at a low angle from the perimeter inward
Placing a light source very close to a wall or textured surface to highlight its surface relief and texture (Correct answer)

Correct answer: Placing a light source very close to a wall or textured surface to highlight its surface relief and texture

Grazing involves positioning a fixture very close to and parallel with a textured surface (brick, stone, bark) so the raking light highlights the surface relief and three-dimensional texture.

Question 85: What is hardpan and how does it affect landscape design decisions?

Rocky subsoil that requires blasting
Compacted gravel base for hardscaping
Impermeable compacted soil layer that blocks drainage and root growth (Correct answer)
Hard surface layer of mulch that repels water

Correct answer: Impermeable compacted soil layer that blocks drainage and root growth

Hardpan is a dense, impermeable soil layer that blocks drainage and root penetration, requiring raised beds, drainage solutions, or breaking through.

Question 86: What does 'Kc' (crop coefficient) represent in landscape irrigation management?

The chemical composition of fertilizer applied per crop cycle
The cost per kilowatt of running an irrigation pump
The conductivity of the soil at a given moisture level
A multiplier applied to reference ET to estimate water needs of a specific plant type (Correct answer)

Correct answer: A multiplier applied to reference ET to estimate water needs of a specific plant type

The crop coefficient (Kc) adjusts reference evapotranspiration to account for differences in water use between various plant types, landscapes, and growth stages.

Question 87: Which type of balance uses mirror-image arrangements on both sides of an axis?

Radial balance
Asymmetrical balance
Symmetrical (formal) balance (Correct answer)
Random balance

Correct answer: Symmetrical (formal) balance

Symmetrical balance places identical or near-identical elements on both sides of a central line.

Question 88: What is a soil horizon relevant to landscape grading and planting?

The slope angle of a graded site
A distinct vertical layer of soil with different characteristics (Correct answer)
The depth to the water table
The top layer of mulch above soil

Correct answer: A distinct vertical layer of soil with different characteristics

Soil horizons are distinct horizontal layers with different textures, organic matter, and colors that develop over time and affect drainage and rooting.

Question 89: What does 'cut and fill' mean in landscape grading operations?

Removing existing vegetation and replanting with erosion-resistant species
Installing drainage trenches and backfilling them with gravel and pipe
Removing contaminated topsoil and replacing it with imported clean fill
Excavating soil from high areas and relocating it to fill low areas to achieve the desired grade (Correct answer)

Correct answer: Excavating soil from high areas and relocating it to fill low areas to achieve the desired grade

Cut and fill is a grading technique where soil excavated from elevated areas (cut) is moved and compacted into lower areas (fill) to achieve the target finished elevation.

Question 90: Which invasive grass species commonly encroaches into cool-season lawns and must be considered when specifying turf?

Kentucky bluegrass
Zoysia
Fescue
Bermudagrass (Correct answer)

Correct answer: Bermudagrass

Bermudagrass spreads aggressively into cool-season lawns and is considered invasive outside its intended warm-season application zones.

Question 91: What is 'xeriscaping' and in which US regions is it most commonly practiced?

Underwater garden design for coastal regions
Exotic tropical plant landscaping, common in Florida and Hawaii
Zero-maintenance artificial turf installation
Water-efficient landscaping using drought-tolerant plants, most common in arid western and southwestern US (Correct answer)

Correct answer: Water-efficient landscaping using drought-tolerant plants, most common in arid western and southwestern US

Xeriscaping is a landscaping approach that minimizes water use through drought-tolerant plant selection, efficient irrigation, and mulching, most commonly applied in the arid western and southwestern United States.

Question 92: What is 'plant hardiness zone creep' and its relevance to US landscape maintenance planning?

Plants becoming resistant to pruning
Invasive plants spreading into new zones
Zone maps becoming outdated instantly
The gradual shift of USDA hardiness zones northward due to rising average minimum temperatures over time (Correct answer)

Correct answer: The gradual shift of USDA hardiness zones northward due to rising average minimum temperatures over time

Warming minimum temperatures allow formerly tender plants to survive in zones where they previously would have died in winter.

Question 93: What does 'bonded' mean when a landscape contractor states they are 'licensed, bonded, and insured'?

The contractor has passed a background check
The contractor's equipment is secured with GPS tracking
The contractor has a signed agreement with a professional association
The contractor has purchased a surety bond that provides financial protection to clients if the contractor fails to complete the work or pay subcontractors (Correct answer)

Correct answer: The contractor has purchased a surety bond that provides financial protection to clients if the contractor fails to complete the work or pay subcontractors

Being bonded means a contractor has purchased a surety bond — a form of insurance that compensates clients if the contractor abandons a project, fails to complete work, or doesn't pay subcontractors.

Question 94: What type of soil test is recommended before any major landscape fertilization program?

Laboratory soil test measuring pH, macronutrients, and organic matter percentage (Correct answer)
Jar settlement test
Visual inspection
Compaction test

Correct answer: Laboratory soil test measuring pH, macronutrients, and organic matter percentage

A laboratory soil test gives precise nutrient and pH data so fertilizer applications are based on actual deficiencies, not guesswork.

Question 95: Why should existing trees be evaluated before finalizing a design?

Their roots, shade, and health affect what can be planted nearby (Correct answer)
They must always be removed for new landscaping
They determine the lawn mower size needed
They set the property tax rate

Correct answer: Their roots, shade, and health affect what can be planted nearby

Mature trees influence light, root competition, and design opportunities.

Question 96: What soil test result is most important before amending soil for a new landscape installation?

Microbial activity count
Organic matter percentage only
Compaction depth only
pH and nutrient levels (N, P, K) (Correct answer)

Correct answer: pH and nutrient levels (N, P, K)

A baseline soil test for pH and macronutrient levels guides amendment decisions and prevents over or under fertilizing.

Question 97: What is a 'retainage' clause in a landscape construction contract?

A percentage of each payment withheld by the client until project completion, ensuring the contractor finishes the work to specification (Correct answer)
A fee charged for storing plant material before installation
A deposit held by a neutral third party during contract disputes
A fee the client pays to retain the contractor's services exclusively

Correct answer: A percentage of each payment withheld by the client until project completion, ensuring the contractor finishes the work to specification

Retainage is a percentage (typically 5–10%) withheld from each progress payment until the project is substantially complete and any deficiencies are corrected, incentivizing contractors to complete and finish work properly.

Question 98: What are the three primary soil texture classes in the USDA soil texture triangle?

Loam, humus, and peat
Clay, silt, and gravel
Topsoil, subsoil, and bedrock
Sand, silt, and clay (Correct answer)

Correct answer: Sand, silt, and clay

The USDA soil texture triangle categorizes soils based on proportions of sand, silt, and clay particles.

Question 99: What does a percolation test measure in landscape site assessment?

Soil compaction resistance
Depth to hardpan or bedrock
Soil fertility and nutrient content
Rate at which water drains through soil (Correct answer)

Correct answer: Rate at which water drains through soil

A percolation test measures how quickly water drains through soil by timing the drop in water level in a test hole, which is critical for drainage and irrigation design.

Question 100: What does 'right plant, right place' mean in sustainable landscape design?

Designing plant placements to comply with HOA rules
Selecting plants whose natural requirements (sun, soil, water) match existing site conditions, reducing the need for amendments and irrigation (Correct answer)
Installing plants in the most visually prominent location in the design
Placing the most expensive plants closest to the entrance

Correct answer: Selecting plants whose natural requirements (sun, soil, water) match existing site conditions, reducing the need for amendments and irrigation

Right plant, right place means selecting plants whose inherent needs for sun, soil type, moisture, and climate match the existing site conditions, minimizing resource inputs after establishment.

Question 101: What is the primary purpose of a 'mass planting'?

To showcase a single rare specimen
To maximize the number of species
To eliminate all open space
To create bold visual impact and simplify maintenance with groups of one plant (Correct answer)

Correct answer: To create bold visual impact and simplify maintenance with groups of one plant

Mass plantings group many of the same plant for strong visual impact and easier care.

Question 102: What does ADA compliance require for the cross-slope of an accessible pedestrian path?

Maximum 2 percent cross slope (Correct answer)
No slope requirement
Maximum 5 percent cross slope
Maximum 8.33 percent cross slope

Correct answer: Maximum 2 percent cross slope

ADA guidelines require that accessible paths have a maximum 2 percent cross slope perpendicular to direction of travel to prevent wheelchair drift.

Question 103: What does 'ET' (evapotranspiration) represent in irrigation scheduling?

Emergency treatment for overwatered plants
The electrical conductivity of irrigation water
The efficiency rating of a sprinkler head
The combined water loss from soil evaporation and plant transpiration (Correct answer)

Correct answer: The combined water loss from soil evaporation and plant transpiration

Evapotranspiration (ET) represents the total water lost from the landscape through soil evaporation and plant transpiration, used to calculate replacement irrigation needs.

Question 104: What NEC (National Electrical Code) requirement applies to all outdoor landscape lighting low-voltage transformers?

They must be installed underground to prevent UV damage
They must be GFCI protected and listed for outdoor use when connected to 120V household current (Correct answer)
They must be installed at least 10 feet from any water feature
They must be installed by a licensed electrician regardless of voltage output

Correct answer: They must be GFCI protected and listed for outdoor use when connected to 120V household current

The NEC requires that the 120V outlet supplying a low-voltage landscape lighting transformer be GFCI (Ground Fault Circuit Interrupter) protected and the transformer must be listed for outdoor installation.

Question 105: What is the primary purpose of adding lime to landscape soil?

Raise soil pH to make it less acidic (Correct answer)
Lower soil pH to make it more acidic
Add nitrogen to improve fertility
Improve soil drainage

Correct answer: Raise soil pH to make it less acidic

Agricultural lime neutralizes soil acidity by raising pH, making nutrients more available for plants that prefer neutral to slightly alkaline conditions.

Question 106: What is the purpose of a 'photocell' or 'dusk-to-dawn' sensor in landscape lighting control?

To prevent circuit overloading when multiple fixtures activate simultaneously
To automatically turn lights on at dusk and off at dawn based on ambient light levels (Correct answer)
To dim lights proportionally based on the phase of the moon
To measure the color temperature of fixtures and adjust accordingly

Correct answer: To automatically turn lights on at dusk and off at dawn based on ambient light levels

A photocell sensor detects ambient light levels to automatically turn landscape lights on at dusk and off at dawn, providing convenient, energy-efficient operation without a timer.

Question 107: What does 'positive drainage' mean in landscape grading?

Adding soil berms around the perimeter of a property
Grading the land so water flows away from structures toward appropriate collection points (Correct answer)
Installing pressurized underground pipe systems
Using pumps to move water uphill to an outlet

Correct answer: Grading the land so water flows away from structures toward appropriate collection points

Positive drainage means the site is graded so all surface water naturally flows away from buildings and toward designated drainage outlets, preventing water intrusion.

Question 108: What is a landscape maintenance contract required to specify in most US states?

Scope of services, frequency, pricing, and responsibilities of each party (Correct answer)
Only the total annual price
List of plants to be installed
Insurance coverage of the client

Correct answer: Scope of services, frequency, pricing, and responsibilities of each party

A valid maintenance contract must define what services are included, how often they occur, pricing, liability, and what each party is responsible for to be enforceable.

Question 109: What are 'chill hours' in horticulture and why do they matter for plant selection?

Hours of full sun required daily
Time for roots to establish in winter
Irrigation frequency in cold months
Hours below 45F needed for fruit or flower production (Correct answer)

Correct answer: Hours below 45F needed for fruit or flower production

Chill hours are cumulative hours at temperatures below 45 degrees F that deciduous fruit trees and some ornamentals need to break dormancy and bloom or fruit properly.

Question 110: Why is a 'transition' important when designing plant beds?

It eliminates the need for mulch
It prevents flowering
It speeds up plant growth
It gradually changes size, color, or texture to avoid abrupt visual jumps (Correct answer)

Correct answer: It gradually changes size, color, or texture to avoid abrupt visual jumps

Gradual transitions in height, texture, or color make a design feel natural and flowing.

Question 111: What does 'texture' refer to in plant selection?

The soil drainage rate
The plant's water needs
The visual and tactile coarseness or fineness of foliage and surfaces (Correct answer)
The plant's bloom color

Correct answer: The visual and tactile coarseness or fineness of foliage and surfaces

Texture is the perceived coarseness or fineness of leaves, bark, and surfaces.

Question 112: Which is an example of a 'functional' design consideration?

Picking the rarest plant
Providing screening for privacy from neighbors (Correct answer)
Matching the mailbox color
Choosing the prettiest flower

Correct answer: Providing screening for privacy from neighbors

Functional considerations address practical needs like privacy, shade, or traffic flow.

Question 113: Which design element creates depth and draws the eye through a landscape?

Identical spacing for every plant
Perspective and layering of plant heights (Correct answer)
Random plant placement
Removing all tall plants

Correct answer: Perspective and layering of plant heights

Layering plants from low to tall creates depth and guides the viewer's eye.

Question 114: Which fertilization timing is generally recommended for cool-season turfgrasses like fescue in the US?

Fall (September through November) as the primary application (Correct answer)
Early spring only
Midsummer (July through August)
Year-round monthly applications

Correct answer: Fall (September through November) as the primary application

Cool-season grasses grow most actively in fall, making it the optimal time for fertilization to build root reserves without pushing vulnerable top growth during summer heat.

Question 115: A USDA Plant Hardiness Zone helps a designer determine what?

The soil pH level
Which plants can survive the local winter temperatures (Correct answer)
How much a plant costs
The bloom color of a plant

Correct answer: Which plants can survive the local winter temperatures

Hardiness zones indicate the coldest temperatures plants can typically survive in a region.

Question 116: What minimum slope away from a foundation is recommended in US residential landscape grading?

6 inches drop in the first 10 feet (5 percent grade) (Correct answer)
1 inch drop in 10 feet (1 percent grade)
No slope required with proper drainage tile
12 inches drop in 10 feet (10 percent grade)

Correct answer: 6 inches drop in the first 10 feet (5 percent grade)

The IRC and most US codes require soil to slope away from foundations at a minimum of 6 inches in the first 10 feet to prevent water from pooling against the structure.

Question 117: What is the purpose of a vegetated buffer strip along a stream or water body?

Filter runoff, stabilize banks, and protect aquatic habitat from upland pollutants (Correct answer)
Prevent public access to water bodies
Provide decorative framing for water features
Create a mowing-free zone for maintenance efficiency

Correct answer: Filter runoff, stabilize banks, and protect aquatic habitat from upland pollutants

Vegetated riparian buffer strips slow and filter stormwater runoff before it enters water bodies, reducing sediment, nutrients, and pesticide contamination while stabilizing banks and providing habitat.

Question 118: What is the purpose of a 'topographic survey' in landscape design site analysis?

To identify plant species on site
To locate underground utilities
To test soil chemistry
To map existing grade elevations and slopes across the site (Correct answer)

Correct answer: To map existing grade elevations and slopes across the site

A topographic survey establishes existing elevation contours that inform grading, drainage, and design decisions.

Question 119: What is a 'hardscape' element in landscape design?

Mulch beds
Non-living features like patios, walls, and walkways (Correct answer)
Lawn grass
Annual flowers

Correct answer: Non-living features like patios, walls, and walkways

Hardscape refers to the built, non-living structures such as paths, walls, and patios.

Question 120: What is efflorescence on masonry surfaces and how is it typically addressed?

Rust stains from iron content
White mineral salt deposits removed with dilute acid wash (Correct answer)
Mold growth cleaned with bleach
Biological staining from algae

Correct answer: White mineral salt deposits removed with dilute acid wash

Efflorescence is the white, chalky deposit left when water carries soluble salts to the masonry surface; it is typically removed with a dilute muriatic acid wash.

Landscape Architect Registration Examination (LARE)

The LARE is the national licensure exam administered by CLARB that tests landscape architects on site inventory and analysis, planning and design, construction documentation, and grading and drainage across four sections.

120

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180 min

Time Limit

70%

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