Ceanothus thyrsiflorus repens

Ceanothus thyrsiflorus repens, Low blue blossom, is a prostrate Ceanothus with lots of attractive sky blue flowers that is found north of Monterey county in the northern coastal plant communities.
Ceanothus thyrsiflorus repens makes an excellent evergreen ground cover that tolerates full sun (near coast) to full shade, and grows well in sand or clay. This California lilac has shiny green foliage and is evergreen. Excels on compacted clay slopes that are north-facing or under the protection of overhanging trees. Seems to tolerate a great deal of water, loves to be washed off every week or two, but is still fairly drought tolerant.
In a formal California garden that is in most of the populated coastal areas, including most of the Los Angeles basin and the bay area, try a mix of Baccharis 'Pigeon Point', Ceanothus thrysiflorus repens, Salvia spathacea(all types), Ceanothus maritimus and Salvia Pt. Sal or Salvia Mrs. Beard.
If you have a place within a mile of the ocean, or on a coastal bluff, or in most of Oakland, Berkeley or San Francisco think about using some of the plants associated with Ceanothus thyrsiflorus repens in the wild such as Arctostaphylos 'Pt. Reyes', Armeria maritima var. californica, Artemisia pycnocephala, Ceanothus gloriosus, Erigeron glaucus, Eriogonum latifolium, Eriophyllum staechadifolium, Grindelia hirsutula, Lupinus arboreus, and Solidago spathulata.

Syn: Ceanothus thyrsiflorus var. thyrsiflorus

Click here for more about California Lilacs (Ceanothus). Why do the roots of some of the Ceanothus look funny?