Ceanothus, California Lilac 'Concha'


Family: Rhamnaceae
Genus: Ceanothus (see-an-OH-thus) (Info)
Cultivar: Concha



Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Drought-tolerant; suitable for xeriscaping

Where to Grow:

Unknown - Tell us


8-10 ft. (2.4-3 m)


10-12 ft. (3-3.6 m)


USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

USDA Zone 10a: to -1.1 C (30 F)

USDA Zone 10b: to 1.7 C (35 F)

Sun Exposure:

Full Sun


Unknown - Tell us

Bloom Color:

Dark Blue

Bloom Time:

Late Winter/Early Spring

Mid Spring

Late Spring/Early Summer



Other details:

Unknown - Tell us

Soil pH requirements:

Unknown - Tell us

Patent Information:


Propagation Methods:

Unknown - Tell us

Seed Collecting:

Unknown - Tell us


This plant has been said to grow in the following regions:

Dublin, California

Martinez, California

Rancho Palos Verdes, California

San Diego, California

Ukiah, California

Langley, Washington

Seattle, Washington

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Gardeners' Notes:


On Dec 4, 2014, CAndersen from Apple Valley
United States wrote:

Bought this at Oak Hills Nursery (Hesperia, CA) in 2001. They said to plant it on the North side of the house, so partial shade. Next year it's supposed to die (15 Years). It is my absolute favorite of all I grow. Fragrant, attracts bees, but the color is fantastic. After it's done blooming it returns to a dull shrub. I have trimmed it down about 3' from the eves many times. Low water needs. By the looks of it I think it will live longer than they say. I did buy "Yankee Point" at the same time and it's leaves were more glossy and a prettier green-but like they said it won't live long. It died after 5 years. Bought " Frosty Blue" in 2006 and it died after a few years. I recommend Concha.


On May 11, 2009, anelson77 from Seattle, WA wrote:

I have several of these. They grow fast and bloom heavily, even one in part shade. No watering needed, even the first year. They bloom later than "Dark Star" and so extend the ceanothus season. Still, "Dark Star" is my favorite, for its intense dark blue color and handsome tiny dark green leaves. "Concha" is lighter blue, has bigger lighter leaves, and grows even faster.


On Feb 26, 2008, bastowp from Brighton
United Kingdom wrote:

This plant grows well in the UK, which is Zone 8


On Mar 17, 2007, berrygirl from Braselton, GA (Zone 7b) wrote:

Ceanothus 'Concha' BLUE CEANOTHUS EG (z8) (Hon,Fra)
One of the best garden Ceanothus (to 6'x 6') because it has densely arranged dark-grn lvs, because of its attractive clusters of deep-blue flowers, AND because it tolerates some summer water. Sun/Med-D/GDr