Ceanothus

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…

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,’…

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…

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

This native plant is of variable appearance, but generally has narrow bluish green foliage and blue to purple flowers.  The variety ‘Margarita Bop’ was discovered at Las Pilitas Nursery in Santa Margarita.  It sends up wands of fuchsia and violet blue flowers in spring and early summer and requires little to moderate water, as do other heterophyllus.