About
Find Nurseries
Design & Inspiration
California Garden Planner
Bay Area Garden Planner (NEW)
Planting Guide
Butterflies
My Plant Lists
Contact Us
Sign In
Donate
Advanced Search
Contact Us
Sign In
Donate
Home
Advanced Search
Map Locator
View Settings
Nurseries Carrying this Plant
Add Current Plant To List
Edit Current Plant
Show all Photos
About Calscape
Nurseries
California Garden Planner
Bay Area Garden Planner (NEW)
Planting Guide
Butterflies
My Plant Lists
Contact Calscape
Donate
Tap map to see plants native to location
Print Plant Signs
Print Plant Labels
Export To Excel
Export To Excel (Detailed)
Order by Popularity
Order by Common Name
Order by Scientific Name
Order by # of Butterflies Hosted
Show nursery cultivars
Hide nursery cultivars
Show plants not in nurseries
Hide plants not in nurseries
Grid view
Text view
Home
>
All plants
for California
>
Ceanothus maritimus
|
Previous
Next
Loading....
Processing the request......
Maritime Ceanothus
( Ceanothus maritimus )
Ceanothus maritimus
More Photos at CalPhotos
More Info at Jepson eFlora
Calflora
Click on blue squares to see occurrence records.
<< Plant species
Zoom To My Address
Zoom To California
Estimated Plant Range (
?
)
occurrences >>
All Occurrence Records
20 Nurseries Carry This Plant
Add to My Plant List
About Maritime Ceanothus (Ceanothus maritimus)
20 Nurseries Carry This Plant
Add to My Plant List
Ceanothus maritimus
is a rare, narrow endemic species of shrub in the Buckthorn family (Rhamnaceae) known by the common name Maritime Ceanothus. It is endemic to San Luis Obispo County, California, where it is known from only a few occurrences in the vicinity of Hearst Ranch. It shares the same range as the similarly rare
Ceanothus hearstiorum
, growing on the coastal bluffs.
This species looks unlike other Ceanothus and is said to resemble the non-native Cotoneaster. This is a spreading or ascending shrub under a meter in height with reddish gray bark aging to gray. The firm evergreen leaves are oppositely arranged, each oval or oblong in shape with a pointed, flat, or notched tip. Its short leaves are shiny green on top and woolly underneath, with their edges curled under and sometimes toothed.
The flower cluster is a small cluster of deep blue to off-white flowers. The fruit is a capsule, generally rounded with tiny horns on top. This is an attractive, adaptable, long-lived plant that is great for central coastal gardens.
Plant Description
Plant Type
Shrub
Size
2 - 3.3 ft tall
3 - 8 ft wide
Form
Mounding, Spreading
Growth Rate
Slow
Dormancy
Evergreen
Fragrance
Fragrant - Pleasant, Slight
Flower Color
Blue, White, Green
Flowering Season
Winter, Spring
Wildlife Supported
Insects, especially bees and butterflies, are attracted to the flowers. Plants in the Ceanothus genus are host plants to the Spring Azure, Echo Blue, Pacuvius Duskywing, California Tortoiseshell, Pale Swallowtail, and Hedgerow Hairstreak butterflies.
Butterflies & moths hosted ( 44
likely
* )
SHOW ALL
*
Gray Hairstreak
Strymon melinus
Strymon melinus
*
Pale Tiger Swallowtail
Papilio eurymedon
Papilio eurymedon
*
Lorquin's Admiral
Limenitis lorquini
Limenitis lorquini
*
California Tortoiseshell
Nymphalis californica
Nymphalis californica
*
The Brown Elfin
Callophrys augustinus
Callophrys augustinus
*
Pacuvius Duskywing
Erynnis pacuvius
Erynnis pacuvius
*
Hedgerow Hairstreak
Satyrium saepium
Satyrium saepium
Landscaping Information
Sun
Part Shade, Full Sun
Moisture
Low
Summer Irrigation
Max 2x / month once established
Nurseries
Carried by 20
Ease of Care
Very Easy
Cold Tolerance
Tolerates cold to -4° F
Soil Drainage
Fast, Medium, Slow
Soil Description
Normally found on sand sea bluffs, but tolerant of clay or rocky soils. Reported to tolerate high boron soil.. Tolerates Saline Soil. Soil PH: 6.0 - 8.0
Common uses
Groundcovers, Bank Stabilization, Deer Resistant, Bird Gardens, Butterfly Gardens, Bee Gardens
Companion Plants
Chamise
(
Adenostoma fasciculatum
), Coffee Berry (
Frangula californica
),
Toyon
(
Heteromeles arbutifolia
),
Iris douglasiana
, Coast
Twinberry
(
Lonicera involucrata
var. ledebourii),
Black Sage
(
Salvia mellifera
),
Sticky Monkeyflower
(
Mimulus aurantiacus
) and
Lupinus species
Maintenance
Tip prune if a compact shape is desired.
Propagation
?
For propagating by seed: Hot water treatment.
Natural Setting
Site Type
Slopes and bluffs very near the coast, as part of chaparral or valley grassland, primarily in San Luis Obispo County. However, it is said to do well inland in high shade.
Climate
Annual Precipitation: 20.5" - 22.7", Summer Precipitation: 0.32" - 0.36", Coldest Month: 49.8" - 50.8", Hottest Month: 61.7" - 64.6", Humidity: 1.24" - 10.17", Elevation: 20" - 211"
Print Plant Sign
Print Plant Label
Back
Print
Back
Print
Maritime Ceanothus
Ceanothus maritimus
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
Sign in to your Calscape Account
X
Once signed in, you'll be able to access any previously saved plant lists or create new ones.
Email Address
Password
Sign In