About the Journal
Calendar of Events
Things to Expect & Do
Trees for Special Areas
A Date with History
Annuals in the
Buzz; A Book Review
Ask a Master Gardener
How Herbicides Work
Smell of Rain
East Valley Escape
Garden Insects of
Is Your Gardening
W O R D W I S E
Definition of Terms Used in This Issue
by Candice Sherrill, Master Gardener
alkaline (Annuals) — with a pH level above 7. Alkaline soils are basic rather than acidic, and considered "sweet."
annual (Annuals) — a plant that germinates from seed, flowers, sets seed, and dies in the same year, compared to a biennial (two seasons) or perennial (three or more seasons) plant.
antioxidant (Underappreciated Smell of Rain) — a substance that inhibits the destructive effects of oxidation, for example in the body or in foodstuffs and plastics.
arboretum (A Date with History) — a place where trees, shrubs and herbaceous plants are cultivated for scientific or educational purposes.
caliche (Underappreciated Smell of Rain) — a crust of calcium carbonate formed on stony soils of arid regions.
evergreen (Underappreciated Smell of Rain) — having green leaves through the winter; not deciduous.
foliar (Annuals) — pertaining to the leaves or foliage of plants.
heartwood (Velvet Mesquite) — the harder, innermost, and usually darker-colored wood comprising the interior of a tree trunk or branch.
lateral root (Underappreciated Smell of Rain) — a secondary root growing from a dominant or "parent" root.
organic fertilizer (Annuals) — a fertilizer whose molecules contain carbon and hydrogen atoms.
perennial (Annuals) — a plant whose life cycle lasts for three or more seasons; lasting year after year.
resinous (Underappreciated Smell of Rain) — describing organic substances formed in plant secretions, which are usually transparent or translucent, flammable, and insoluble in water.
sapwood (Velvet Mesquite) — the softer, newer, usually lighter-colored wood between the inner bark of a tree and the heartwood; the wood that actively transports water.
scarify (Velvet Mesquite) — to cut or soften the outer layer of a hard seed to hasten germination.
taproot (Underappreciated Smell of Rain) — the main root of a plant, having a single, dominant axis.
transpiration (Underappreciated Smell of Rain) — the act of giving off or exuding water vapor from a living body through a membrane or pores, especially in leaves.
tripartite (A Date with History) — divided into or composed of three parts.
Maricopa County Master Gardener Volunteer Information
Last Updated November 21, 2004
Author: Lucy K. Bradley, Extension Agent Urban Horticulture, University of Arizona Cooperative Extension, Maricopa County
© 1997 The University of Arizona, College of Agriculture and Life Sciences, Cooperative Extension in Maricopa County
Comments to Maricopaemail@example.com 4341 E. Broadway Road, Phoenix, AZ 85040,
Voice: (602) 470-8086 ext. 301, Fax (602) 470-8092