Maritime Ceanothus

70322What ever happened to Point Reyes ceanothus? It is such a nice low growing shrub, with small holly-like leaves, and cheery blue flowers in very early spring. It was quite popular when it initially became available, but now seems to be rare. Maritime ceanothus, Ceanothus maritimus, from San Luis Obispo County, is a similar species that presently seems to be getting more attention.

‘Frosty Dawn’ is the standard cultivar of maritime ceanothus, although there may be at least three cultivars with the same name. The ‘correct’ cultivar gets about two feet tall and five feet wide, with rigid but arching stems, grayish half inch long leaves, and dense trusses of minute blue flowers as winter ends. Another cultivar gets taller with more open growth. Another has lighter blue flowers.

Once established, maritime ceanothus can probably survive without any watering, but it might be happier with occasional watering through summer. New plants will need to be watered until they disperse their roots. Compared to other ceanothus, maritime ceanothus grows relatively slowly, but lives longer. (Many ceanothus can be short-lived.) Also, it is a bit more tolerant of partial shade.

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