CH Landscape Design and Installation

Question 1

In landscape design, the principle of 'unity' is achieved by:

Accepted Answer

Repeating compatible elements to create a cohesive, harmonious composition

Answer

Unity is created through repetition of plants, colors, textures, or forms that ties the design together into a visually coherent whole.

Question 2

The 'Right Plant, Right Place' principle in landscape design primarily considers:

Accepted Answer

Matching plant cultural requirements to existing site conditions

Answer

Right Plant, Right Place matches each plant's light, moisture, soil, climate zone, and space needs to existing site conditions, reducing maintenance and plant failure.

Question 3

When installing balled-and-burlapped (B&B) trees, the top of the root ball should be placed:

Accepted Answer

At or slightly above the surrounding grade

Answer

Setting B&B trees at or 1–2 inches above grade accommodates soil settlement and prevents the root flare from being buried, which can cause girdling and decline.

Question 4

A hardiness zone map (such as the USDA Plant Hardiness Zone Map) is based primarily on:

Accepted Answer

Average annual minimum winter temperatures

Answer

The USDA Plant Hardiness Zone Map divides North America into zones based on the average annual extreme minimum temperature, used to predict which plants can survive winter.

Question 5

In planting design, 'accent plants' are used to:

Accepted Answer

Create focal points or draw attention to key areas

Answer

Accent plants have distinctive form, color, or texture that makes them stand out; they are strategically placed to draw the eye to entrances, focal points, or transitions.

CH - Certified Horticulturist Practice Test

CH - Certified Horticulturist Practice Test

CH Landscape Design and Installation