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Centennial Ceanothus
Ceanothus 'Centennial'
  
About Centennial Ceanothus (Ceanothus 'Centennial') 10 Nurseries Carry This Plant Hybrid of Ceanothus foliosus and Ceanothus griseus. Centennial is a low-growing ceanothus with deep cobalt-blue flowers are concentrated in clusters which, when viewed against the glistening green surface of the leaves the flowers sparkle like water. An evergreen sub-shrub, Ceanothus 'Centennial' reaches to 1' tall to 5' wide. The deep blue flowers occur in late spring to early summer, attracting pollinators such as bees. A tough low maintenance groundcover it is well suited to small gardens, median strips, and slopes. This plant thrives in the dry shade or the understory of oak trees.

Plant in full sun if coastal, and part shade inland. If you live in the hills or mountains you'll be glad to know that the deer do not like this plant. Follow a regular watering schedule during the first growing season to establish a deep, extensive root system. Centennial Ceanothus is drought tolerant and frost hardy to 15-2 degrees F.

Ceanothus 'Centennial' is a hybrid of C. foliosus x C. griseus introduced by Roger Raiche of U.C. Botanic Garden in 199. Grows best in sandy, coarse-grained or other fast draining soil. Prefers sun or part shade in coastal sites, and part shade in inland sites. Naturally occuring hybrid (C. foliosus x C. thyrsiflorus var. griseus) collected at salt point (sonoma Co) in 1985 and introduced by Roger Raiche in 1992.
Thanks to Moosa Creek Nursery and the Theodore Payne Foundation for sharing information about this plant
Plant Description
Plant Type
Plant Type
Shrub

Size
Size
.5 - 1 ft tall
4 - 5 ft wide

Form
Form
prostrate

Growth Rate
Growth Rate
Moderate

Dormancy
Dormancy
Evergreen

Flower Color
Flower Color
Blue

Flowering Season
Flowering Season
Winter

Landscaping Information
Sun
Sun
Full Sun, Part shade

Moisture
Moisture
Low

Nurseries
Nurseries

Cold Tolerance
Cold Tolerance
15

Soil Drainage
Soil Drainage
Fast

Soil Description
Soil Description
sandy, coarse-grained or other fast draining soils

Common uses
Common uses
Groundcovers, Bee Garden

Site Characteristics
Alternative Names
Common Names: Centennial Mountain Lilac


Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora


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