Mimulus

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…

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…

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

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…

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…

The Matilija poppy (Romneya coulteri) is one of the most spectacular California native plants. Getting it started can be difficult, but once established, it requires no irrigation and may, in fact, need to be watched so as not to take over your garden.