Dendromecon

For the shade, try Heuchera maxima, a cream flowering coral bell that looks great under oak trees and needs very little water.

There are many species of Ribes, both evergreen and deciduous.  A very nice evergreen species is Ribes viburnifolium with roundish, dark green leaves and dark red stems.  It needs no irrigation, making it ideal for planting under oaks.  It grows three to six feet tall and can spread to twelve feet. A lovely deciduous species is…

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. …

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,’…

Mimulus aurantiacus, or monkey flower, grows to about four feet and blooms in a wide range of colors from white to dark red.  It likes sun or part shade, good drainage and little water.

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…