Sign up Log in

Comarostaphylis diversifolia

An evergreen California-native shrub in the heath family (Ericaceae) with creamy-white urn-shaped flowers in spring, red drupes, and drought-tolerance on well-drained coastal chaparral sites, valued for ornamental appeal and attraction of birds and butterflies.

Is Comarostaphylis diversifolia growing in your garden? Record it and all of your plants in Known.

Common Names

Summer Holly, Summer-Holly, Mock Arbute, Mock Arbutus

Summary

An evergreen shrub or small tree native to coastal California and Baja California chaparral, it grows to 6–9 m tall with a broad, upright form and shredding gray-brown bark; leaves are glossy, leathery, and evergreen, with gray-tomentose inflorescences bearing urn-shaped white flowers and bright red fruits that mature in summer.

In cultivation, it prefers full sun to light shade on well-drained soils, is drought-tolerant once established, and tolerates clay soils; it is hardy to USDA zones 8a–11 and widely cultivated for bird- and butterfly-garden plantings, suitable for use as a specimen, background screen, or informal hedge.

Lifecycle

Perennial

Height

10-20 ft

Spread

8-15 ft

Hardiness Zones

Zones 7b-11

Sunlight Requirements

Ideally full sun to partial shade.

Soil Type

Well-drained soil

Soil Drainage

Well-drained soil

Soil pH

6.0-8.0

Bloom Color

White

Bloom Time

Spring to Summer

Foliage Color

Green

Fall Foliage Color

Green

Leaf Lifecycle

Evergreen broadleaf

Growth Rate

Slow

Seasons of Interest

Spring and Summer

Propagation Methods

Seeds; fresh seeds require no treatment; stored seeds require 3 months of stratification.

Attracts Wildlife

Attracts hummingbirds, other pollinators, birds

Taxonomy

Taxonomic Rank
Species
Author
(Parry) Greene
Publication
Bull. Calif. Acad. Sci. 2(7): 406 (1887)

Superior Taxa

Kingdom
Plantae
Subkingdom
Pteridobiotina
Phylum
Angiosperms
Order
Ericales
Family
Ericaceae
Subfamily
Arbutoideae
Genus
Comarostaphylis

Inferior Taxa

Comarostaphylis diversifolia subsp. planifolia

Synonyms

Arctostaphylos diversifolia Comarostaphylis diversifolia var. diversifolia Comarostaphylis diversifolia subsp. diversifolia Arctostaphylos arguta var. diversifolia

References

Comarostaphylis diversifolia in Flora of North Ame…. efloras.org.
Summer Holly - Calscape. calscape.org.
Comarostaphylis diversifolia. en.wikipedia.org.
Comarostaphylis diversifolia - FNA. floranorthamerica.org.
Comarostaphylis diversifolia | Summer Holly | plan…. plantlust.com.
CNPS Rare Plant Inventory. rareplants.cnps.org.
Comarostaphylis diversifolia ssp. diversifolia - N…. theodorepayne.org.
Comarostaphylis diversifolia. ucjeps.berkeley.edu.
WFO Plant List | World Flora Online. wfoplantlist.org.
Comarostaphylis diversifolia ssp. planifolia Calfl…. calflora.org.
Comarostaphylis diversifolia - California Flora Nu…. calfloranursery.com.
Comarostaphylis diversifolia - Native Sons Wholesa…. nativeson.com.
Comarostaphylis diversifolia description. nybg.org.
Comarostaphylis diversifolia ssp. planifolia. wildflower.org.
World Flora Online. worldfloraonline.org. June 2024.