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California Native Plants

A Guide to Ceanothus Species and Selections
and
Growing California Lilacs

Return to CA Native Main Page

Note:  May need to print page in landscape format to obtain all data.

A Guide to Ceanothus (Wild Lilac) Species and Selections

Species Common Name Derivation/Origins
Type
Exposure
Sun, Partial Sun, Shade
Dimensions
H x W
Inflorescence Color/Size
White, Lt Blue, Med Blue, Drk Blue, Violet
Best Features Drought Tolerance
 - - - Sun PS Sh  Height   Width Wh LB MB DB V - L M H
Ceanothus arboreus Catalina Feltleaf Ceanothus Coastal California, Channel Islands
Euceanothus
 Sun PS  - 20-30'H 10'  W - LB 6" MB - -

Large dark leaves, showy light to medium blue flowers.

- M H
Ceanothus 
'Blue Cascade'
 - Euceanothus Sun - - 6-10'H  8-10' W - - MB
2-3"
- - Glossy, bright green leaves with blue, fingerlike flower clusters. - M H
Ceanothus 
'Blue Jeans'
Selection C. gloriosus porrectus, 
Central CA Coast
Euceanothus
 Sun PS - 3-5'H 8-10' W - LB
1"
 - - - Lavender-shaded flowers upon dark green leaves - M H
Ceanothus 
'Concha'
Hybrid C. papillosus roweanus X C. impressus
Central CA, inland
Euceanothus
Sun PS - 5-6'H  8-10' W - - - DB V 2" Stunning, profuse electric blue to violet flowers on rigid stems. Tolerant of heavy soils if not over-watered. Cold hardy to 15F - M H
Ceanothus crassifolius Hoaryleaf Ceanothus Interior, Southern California Chaparral
Cerastes
Sun - - 6'H 6-8' W Wh 1" - - - - Small, dark, leathery leaves, stiff silver stems, very drought tolerant, good slope stabilizer.  Cold hardy to 15F. -  - H
Ceanothus 
'Dark Star'
Seedling Hybrid C. papillosus roweanus X C. impressus or X C. oliganthus
Central CA, Interior CA
Euceanothus
Sun PS - 5-6'H 8-10'W - - - DB V 2" Showy rounded flower clusters magenta in bud to dark blue/violet. Compact shrub, heavy soils okay, if not over-
watered.  Tolerates temperatures in the teens. 
- M H
Ceanothus 
'Frosty Blue'
Hybrid  C. impressus
 X ? 
Central, Northern Coastal CA, Euceanothus 
Sun PS - 6-9'H 8-10'W - - MB
4"
- - Medium blue, frosted flowers with dark green, small leaves.  Heavy soils okay.  Highly recommended. - M H
Ceanothus gloriosus 
'Emily Brown'
Selection  C. gloriosus ssp. exaltatus
Central CA Coast
Cerastes
Sun PS - 2-3'H 6-8'W - LB
1"
MB
4"
- - Pretty mounding, holly-leafed groundcover with light blue rounded flower clusters.  Hardy.  Tolerates high temperatures, blasting sun.  Cold hardy to 15F. - M H
Ceanothus griseus horizontalis Carmel Creeper Central CA Coast
Euceanothus
Sun PS Sh 1-3'H 6-7' W - LB MB
4"
- - Dark green, dense ground cover. Flowers are long & abundant and milky light blue. Culturally versatile. Okay in heavy soils.  Cold hardy to 15F. - M H
Ceanothus griseus horizontalis
'Yankee Point'
Selection griseus horizontalis
Central CA Coast
Euceanothus
Sun PS Sh 1-3'H 6-8' W - LB MB
4"
- - Dark green, dense groundcover. Flowers are long & abundant and medium sky blue. Adaptable. Okay in heavy soils. Cold hardy to 15F. - M H
Ceanothus griseus 'Louis Edmunds' Selection griseus
Central CA Coast
Euceanothus
Sun  PS Sh 10'H 10-12'W  - - - DB 6" - Large, dark green leaves densely cover shrubby tree. Flowers are long & abundant and dark bluish purple. Adaptable. - M H
Ceanothus hearstiorum San Simeon Ceanothus Central CA Coast
Endangered in nature
Euceanothus
Coastal
Sun
PS Sh 6"-1'H 6' W - - - DB - Extremely prostrate, dark leaves, electric blue flowers.  Protect from harsh sun inland.  Heavy or sandy soils okay.  - M -
Ceanothus 
'Heart's Desire'
- Euceanothus Sun PS -  4-6'H 4-6' W - - MB - -  - - M -
Ceanothus impressus Santa Barbara Ceanothus Central CA Coast
Euceanothus
Sun PS Sh 8-10H'  8' W - - MB
2"
- - Denim colored flowering clusters on dull, dark green leaves.  Cold hardy to 15F. - M H
Ceanothus 
'Joyce Coulter'
Hybrid C. papillosus roweanus X C. griseus horizontalis ?
Central CA, inland
Euceanothus
Sun PS Sh  4'H 5' W,
10' L
- - - DB
3-5"
- Electric blue,  long-blooming flowering show.  Tolerant of garden conditions.  Blooms well in shade.  Good for long, narrow spaces. Cold hardy to to 15F L M H
Ceanothus 
'Joan Mirov'
Hybrid C. foliosus X C. griseus
Coastal and Interior CA
Euceanothus
Sun PS -  3-5'H 8-10' W - - MB - - - L M -
Ceanothus leucodermis Chaparral Whitethorn California Chaparral, Foothill Communities
Euceanothus
Sun - - 12' H 8' W - LB 6" - - - Waxy, oval, light green leaves on stiff branches foil beautiful magenta buds turning to pale blue flowers.  Deep rooted, good for erosion control. Cold hardy to at least to 15F. - - H
Ceanothus maritimus Maritime Ceanothus Central CA Coast
Cerastes
Coastal Sun PS Inland
Sh
1-3'H 3-8' W Wh LB
1"
- - Cascading small-
leaved foliage sports white to lavender blue flowers.  Great for rock gardens or slopes.
L M H
Ceanothus maritimus 
'Point Sierra'
Selection C. maritimus
Cerastes
Sun PS -  1-3'H 3-8' W - LB
1"
- - - More heat and sun-tolerant than true species. L M -
Ceanothus megacarpus Big-pod Ceanothus Southern CA Coast
Cerastes
Sun PS - 12' H 8' W Wh
1"
- - - - Small, dark, leathery leaves, silver stems with small white flower clusters.  Deep rooted, good for wildlife habitat, slope stabilization - - H
Ceanothus oliganthus Hairy Ceanothus Central to Southern CA, Inland Chaparral
Euceanothus
Sun PS - 10' H  8' W - - MB
2"
DB V Beautiful flowers range from mid-blue to violet.  Shiny small dark green leaves.  Tolerant of heat, drought, steep slopes.  Pretty! Cold hardy to 15F. - M H
Ceanothus 'Owlswood Blue'  Selection C. arboreus
X ?
Channel Islands, Coastal CA
Euceanothus
Sun PS Sh 10-12'H  8-10' W  - - MB DB
4"
- Showy inflorescences on treelike shrub with dark, glossy, broad leaves.  Okay in shade or Partial Sun and heavy soils. - M H
Ceanothus ramulosus Coast Ceanothus Northern CA Coast
Cerastes
Sun PS -  8'H 6-8' W Wh
1"
LB - - - Lavendar topale blue to white flowers on strange, twisting stems with small spaced leaves.  Heavy soils okay with infrequent irrigation - - H
Ceanothus 
'Ray Hartman
'
Hybrid C. griseus X
C. arboreus ?
Coastal CA
Euceanothus
Sun PS  Sh 12-20'H 15-20'W - - - DB 6" - Beautiful shrub or small tree with long dark blue flower clusters.  Okay for shade, assorted soils. L M -
Ceanothus rigidus 'Snowball' Selection C. rigidus
Monterery Ceanothus
Cerastes
Sun  PS -  2-3 H 4' W Wh
1"
- - - - Good for hot, sunny slopes.  Tightly clustered white flowers cover holly-like leaves. - M H
Ceanothus spinosus Greenbark Ceanothus Central, California Coasts, So. California Inland
Euceanothus
Sun PS - 15-20'H 10-15'W Wh LB
6"
MB - - Long inflorescences usually light to medium blue on light green leaves.  Green trunk.  Deep rooted, good for hot sunny slopes. Cold hardy to at least to 15F. - - H
Ceanothus thyrsiflorus 
'Skylark'
Selection C. thyrsiflorus 
Central to Northern CA Coast
Euceanothus
Sun  PS -  3-5'H 5-8' W - - - DB
2"
- Dark green glossy leaves with very dark blue flowers.  Relatively garden tolerant L M -
Ceanothus thyrsiflorus 
'Snow Flurry'
Hybrid C. thyrsiflorus X ?
Central to Northern CA Coast
Euceanothus
Sun PS Inland 
Shade
8-10'H  8'W Wh 6" - - - - Dark green glossy leaves with long, pretty greenish white flower clusters that never brown on the stem.  Exceptional.  Heavy soils okay. L M -
Ceanothus tomentosus Woollyleaf Ceanothus Southern CA Inland, Chaparral
Euceanothus
Sun PS -  6-8'H 8'W - - - DB V 2" Electric blue flower clusters on shiny, dark green foliage.  Great for slopes, all soils okay.  Excellent.  Cold hardy to 15F. - M H
 
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This page was last updated on 07/28/2004 03:24 PM