Master Gardener's Drought Garden - Washington State University


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Master Gardener's Drought Garden - Washington State University

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Master Gardener's Drought Garden - Washington State University

  1. 1. 222 N Havana Spokane WA 99202 (509) 477-2181 C022 MASTER GARDENER DROUGHT GARDENThis planting area was a problem for many years until Spokane County Master Gardeners “adopted it” for adrought tolerant demonstration garden. The site has poor soil (dry, devoid of organic matter) and is squeezedbetween hot pavement and a cement wall. It faces fully south. The site has all the characteristics of agardener’s worst nightmare, yet Master Gardeners have transformed it using a serpentine rock wall design anddrought tolerant perennials, groundcovers and small shrubs that bloom at different times during the year, haveinteresting foliage and tolerate (or even thrive in) adverse conditions. This site is watered once a week duringthe summer months only. A drip irrigation system would be ideal here and someday may be put in.Procedure: • First, weeds and remaining old plants were dug out and discarded. • A 4-inch layer of organic matter, in the form of municipal compost and 3-way mix, was incorporated into the top several inches of ground. (Hard work, but worth it!) • Rocks were hand placed in a serpentine pattern and soil from in front of the rocks was mounded up behind the rocks to create two levels (about a 6-inch difference) • Plants adapted to a hot, dry site were selected, planted and watered heavily during establishment • 2-inches of fine bark mulch were spread over the site to hold in soil moisture. Mulch should be re- applied yearly.Plants in this garden:For more information about each of these plants, please request the lists of drought tolerant plants in theWSU/Spokane County Master Gardener Resource Center.Common Name Plant Name Common Name Plant NameBeardstongue Penstemon species Maltese Cross Lychnis chalcedonicaBlanket flower Gaillardia aristata Purple Coneflower Echinacea purpureaBlue Flax Linum perenne “Lewisii” Showy stonecrop Sedum spectabileCreeping Oregon Grape Mahonia repens Wooly Thyme Thymus lanuginoususDaylily Hemerocallis species Yarrow Achillea millefoliumHens and Chicks Sempervivum species Yucca Yucca species Compiled by Tonie Fitzgerald. For more information, contact Master Gardeners at (509) 477-2181. Revised June 2007 Cooperating Agencies: Washington State University, U.S. Department of Agriculture, and Spokane County. WSU Extension programs and policies are consistent with federal and state laws and regulation on nondiscrimination regarding race, color, gender, national origin, religion, age, disability, and sexual orientation. Evidence of noncompliance may be reported through your local Extension office.