Rhamnus californica, or coffeeberry, is an evergreen shrub that can grow from three to fifteen feet, depending on the variety and the climate in which it is planted. The common name comes from the berries that turn black once they have ripened. It is not particular about soil and can take sun or partial shade. Established plants need no irrigation, but will look better with at least some water.
Trichostema lanatum (woolly blue curls) grows to three to five feet high and four to eight feet wide. The dark green leaves are pungent when bruised. The purple flowers are fuzzy and appear in spring. The plant will continue to bloom during summer and autumn if it is deadheaded. Trichostema takes full sun and needs…
Fremontodendron is also known as flannel bush because the back of the leaves are fuzzy and soft. Showy yellow flowers appear in spring. This shrub takes full sun and is drought tolerant once established, requiring no irrigation at all. Its primary drawback is that it tends to be short lived, but it is fabulous while…
Another diverse and useful genus is Salvia. The Clevelandii group includes ‘Allen Chickering’, ‘Whirly Blue’, ‘Pozo Blue’ and ‘Winifred Gilman’. In need of an attractive, drought tolerant ground cover? Try ‘Bee’s Bliss’. This salvia has gray green leaves with lavender flowers in spring; it will spread three to four feet wide or more. Salvia spathacea (Hummingbird sage) A…
Buckwheats provide color spring and summer. Eriogonum umbellatum (sulphur buckwheat) sports bright yellow flowers in spring. Eriogonum giganteum (St. Catherine’s Lace) is topped with creamy clusters of flower sprays reaching as high as five feet. The star of the genus, Eriogonum grande var. rubescens (rosy buckwheat) displays rosy buttons atop rounded gray-green leaves for most of…
Tops on the list of desirable shrubs is Arctostaphylos, commonly called manzanita. Again, there are many choices in this genus. Handsome and tree-like are ‘Dr. Hurd’, ‘Hood Mountain’ and ‘Austin Griffiths’. ‘Sentinel’ is one of the more upright varieties, eventually reaching five to six feet. Medium sized Manzanitas are ‘Howard McMinn,’ ‘Sunset,’ ‘John Dourley’ and ‘Wayside,’…