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Products > Ceanothus griseus var. horizontalis 'Diamond Heights'
Ceanothus griseus var. horizontalis 'Diamond Heights' - Diamond Heights Carmel Creeper
Image of Ceanothus griseus var. horizontalis 'Diamond Heights'
[2nd Image]
Habit and Cultural Information
Category: Shrub
Family: Rhamnaceae (Buckthorns)
Origin: California (U.S.A.)
Evergreen: Yes
Yellow/Chartreuse Foliage: Yes
Variegated Foliage: Yes
Flower Color: Blue
Bloomtime: Spring
Fragrant Flowers: Yes
Synonyms: [C. thyrsiflorus var. griseus 'Diamond Heights']
Height: 1 foot
Width: 4-6 feet
Exposure: Sun or Shade
Summer Dry: Yes
Irrigation (H2O Info): Low Water Needs
Winter Hardiness: 20-25 F
Ceanothus griseus var. horizontalis 'Diamond Heights' (Diamond Heights Carmel Creeper) - A beautiful, prostrate groundcover that grows to 1 foot tall by 6 feet wide, it features 1 inch oval shaped, lime green leaves with irregular splashes of dark green. The yellowish tones are brightest under sunny, warm weather conditions whereas green predominates in shady sites and during the cooler winter months. Although most notable for its leaf coloration, the pale blue springtime flowers are a frothy bonus. Plants perform best in full sun to light shade near the coast and need increasing protection from hot sun when planted further inland to avoid leaf burn. Well drained soil and occasional supplemental irrigation is suggested for the plant to look at its best and is required in inland gardens. It is cold hardy to about 20 F. This plant is slower growing than other cultivars of Carmel Creeper and one should remove any stems with solid green leaves that periodically develop. For those who are attracted to variegated foliage, this unusual low growing Ceanothus selection will definitely appeal. We find it, particularly attractive when used in light shade where it can brighten an area - is a bit too blinding for our tastes when used in a bright sunny location unless this is the effect one is seeking and unless in a coastal garden as the foliage will likely burn if grown in full sun in hotter locations. This sport was selected by the late Barry Lehrman from a planting of Carmel Creeper (Ceanothus griseus var. horizontalis), that was found where he lived in the Diamond Heights neighborhood on Mount Davidson, the highest hill in the center of San Francisco. Barry, a well-known horticulturist who worked for East Bay Nursery, gave the plant to Luen Miller to grow at Joe Solomone's S&S Nursery, which later became Monterey Bay Nursery. Ceanothus griseus var. horizontalis is now currently thought to be a variety of Ceanothus thyrsiflorus, making the correct name for this plant Ceanothus thyrsiflorus var. griseus 'Diamond Heights', but we will continue to list it under the older name until this new name gets more widely accepted. 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 americanusInformation displayed on this page about  Ceanothus griseus var. horizontalis 'Diamond Heights' is based on the research conducted about it in our library and from reliable online resources. We also note those observations we have made of this plant as it grows in the nursery's garden and in other gardens, as well how crops have performed in our nursery field. We will incorporate comments we receive from others, and welcome to hear from anyone who may have additional information, particularly if they share any cultural information that would aid others in growing it.