Horticulture and Planting Design Flashcards
6 cards from real BLArch Bachelor of Landscape Architecture practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Horticulture and Planting Design flashcards as text
Which USDA Hardiness Zone covers most of the Pacific Northwest coastal region of the US?
Answer: Zone 8
The Pacific Northwest coast falls primarily in USDA Hardiness Zone 8, with mild winters rarely dropping below 10°F.
What is the primary purpose of a 'rain garden' in landscape planting design?
Answer: Capture and infiltrate stormwater runoff
Rain gardens are shallow, planted depressions designed to capture and infiltrate stormwater runoff from impervious surfaces.
Which term describes the practice of using plants native to a specific region in landscape design?
Answer: Native planting
Native planting uses plants indigenous to a specific geographic region, supporting local wildlife and requiring less maintenance.
What does 'xeriscaping' primarily aim to achieve in landscape design?
Answer: Reduce water usage through drought-tolerant planting
Xeriscaping is a landscaping approach that reduces or eliminates the need for supplemental irrigation by using drought-tolerant plants.
Which soil amendment is commonly used to improve drainage in heavy clay soils?
Answer: Coarse sand or grit
Coarse sand or grit added to clay soils increases pore space, improving drainage and aeration.
What is the term for the arrangement of plants by height from tallest at back to shortest at front in a border?
Answer: Tiered arrangement
A tiered arrangement places tall plants at the rear and progressively shorter plants toward the front to maximize visibility and visual interest.