Romneya coulteri

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…

Ceanothus, ‘California wild lilac’, is known for its wonderful spring floral display.  Flower colors are either white or shades of purple-blue, while height can range from a foot or two to twenty feet.  ‘Ray Hartman’ and ‘Cliff Schmidt’ are among the tallest of the Ceanothus, attaining heights of twelve to twenty feet.   ‘Dark Star’ and ‘Concha’ are among the varieties…

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.

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…

Zauschneria, or California fuschia, is a low spreading plant with green, grey or silvery foliage and orange to scarlet flowers.  Bloom occurs in late summer or autumn and the flowers are very attractive to hummingbirds.  The plant is fast growing and drought tolerant, but as with most plants, it looks better with occasional water.  It…