Horticulture CDE Written Test Review

A collection of vocabulary flashcards based on key concepts from the Horticulture CDE Written Test lecture notes.

Plugger/Aerator

A tool used for compacted soil treatment.

Mulching

Covering soil with material to prevent winter freezing and control weeds.

Xeriscaping

A landscaping technique for water conservation.

Cultivar

The variety of a plant, in this case, 'Red Sunset' for Acer rubrum.

Vegetative Period

The time in which the plant develops stems and leaves.

Perlite

A gray-white volcanic material used for soil aeration.

Peat Moss

Partially decomposed vegetation collected from marshes.

Rhizosphere

The area of soil just below the earth's surface where most plant roots grow.

Asymmetrical Balance

An informal approach to design in landscaping.

Shade-Tolerant Grass

Grass that can grow under dense shade conditions.

Narrowleaf Evergreens

Plants that remain green year-round and adaptable to various conditions.

Root-bound

A condition where the roots of a container-grown tree are constricted.

Preemergence Herbicide

A chemical applied before the crop is up.

Indoleacetic Acid

A naturally occurring rooting hormone in plants.

Focal Point

A principle of design that creates interest in floral arrangements.

Frost-Free Site

A location protected from spring frost, important for blueberries.

Germination

The percentage of seeds that will sprout, as labeled on seed containers.

Thatch

A layer of organic material that can affect water penetration in lawns.

Flower Parts

The primary components of a flower: sepal, petal, stamen, and pistil.

Weed

A plant growing where it is not wanted.

Soil pH

A measurement indicating acidity or alkalinity of the soil.

Seed Starting Date

Crucial for timing to ensure plants are ready for sale or planting.