Contrary to its reputation as the land of perpetual rainfall, our western Oregon climate is really temperate Mediterranean, with a warm, dry summer. Many popular landscape plants require regular summer irrigation for best performance, and, as any homeowner knows, irrigation systems and water are quite expensive. In addition, there are homeowners in rural areas that depend on water-limited wells and may not be able to water extensively. Fortunately, no gardener needs to forgo a lush, year-round landscape just because they can’t water, they simply need to choose plants adapted to summer drought. Northwest Plant Evaluations was started in 2000 to identify a palette of shrubs suitable for low-input, un-irrigated landscapes in the Willamette Valley. Plants in these evaluations are not watered, sprayed or pruned for the duration. In collaboration with Heather Stoven, evaluations have been completed on Ceanothus, Cistus, Halimium, and Grevillea. Join us, on June 11th as Neil Bell, OSU Extension Service, shares insight from the NW Plant Evaluations, including the evaluation of 75 selections of Arctostaphylos (manzanitas) at the OSU North Willamette Research and Extension Center in Aurora.
*This presentation counts for 1 hour garden education/recertification credit.