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Products > Ceanothus 'Concha'   Ceanothus 'Concha' - Concha Ceanothus     [2nd Image] Habit and Cultural Information Category: Shrub Family: Rhamnaceae (Buckthorns) Origin: California (U.S.A.) Evergreen: Yes Flower Color: Dark Blue Bloomtime: Spring Parentage: (C. impressus x C. papillosus var. roweanus) Height: 6-8 feet Width: 6-12 feet Exposure: Full Sun Summer Dry: Yes Deer Tolerant: Yes Irrigation (H2O Info): Low Water Needs Winter Hardiness: 10-15° F Ceanothus 'Concha' (Concha Ceanothus) - A shrub with arching branches that may eventually reach 8' tall by about 10' wide, composed of narrow, 1" long, dark green leaves. A profusion of deep blue flower clusters emerge from reddish buds in spring. Plant in full sun for maximum flowering. Established plants need no summer water but will tolerate it; this attribute and its abundant flowering account for Concha’s reputation as one of the best, most reliable ceanothus cultivars. It also tolerates a wide range of soils and alkalinity. Hardy to 10 degrees F without damage. This venerable cultivar was discovered in 1946 and then named in 1949 by Charles Samms, who found it growing in his Bee Line Nursery in San Dimas (later in Aptos). It is thought to be a hybrid between Ceanothus impressus and Ceanothus papillosus var. roweanus (now considered to just be a compact form of Ceanothus papillosus). It has long been considered to be one of the best of the of California Lilacs. The genus name comes from the Greek word keanthos which was used to describe a type of thistle and meaning a "thorny plant" or "spiny plant" and first used by Linnaeus in 1753 to describe New Jersey Tea, Ceanothus americanus.  The information provided on this page is based on research we have conducted about this plant in our nursery's library, from what we have found about it on reliable online sources, as well as from observations in our nursery of crops of this plant as well as of plants growing in the nursery's garden and those in other gardens. We will also incorporate comments received from others and welcome getting feedback from anyone who may have additional information, particularly if it includes cultural information that would aid others in growing  Ceanothus 'Concha'.     [MORE INFO]