Data provided by the participants of the Consortium of California Herbaria

View additional distribution information on the Jepson eflora

Presidio Manzanita (Arctostaphylos hookeri ssp. ravenii) is a rare native shrub whose only documented location in the wild is in Presidio Park, San Francisco. It is listed by State and federal agencies as an Endangered Species. The U.S. Fish and Wildlife Service says that only one individual of this subspecies remains in the wild and no wild seedlings of this plant have been observed. However, it has been propagated from seeds and cuttings for conservation purposes, and it is sometimes available for garden use. It was formerly classified as Arctostaphylos hookeri ssp. revenii and some sources may still refer to it by that name.

Plant type

Shrub

Size

2 ft Tall
5 ft Wide

Form

Spreading

Dormancy

Evergreen

Calscape icon
Color

White

Flowering season

Spring, Winter

Special uses

Deer resistant, Groundcover

Sun

Full Sun, Partial Shade

Water

Low

Summer irrigation

Max 2x / month once established

Soil drainage

Medium

Soil description

The sole remaining individual is growing on a serpentine outcrop. However, it appears to be tolerant of normal garden soil.

Site type

Presidio Park, San Francisco

Plant communities

Chaparral, Northern Coastal Prairie, Northern Coastal Scrub

This plant can be used with most other northern chaparral plants. However, due to its rarity in the wild, it would be shown to best advantage when used with other plants commonly found in the vicinity of Presidio Park, such as Yerba Buena (Clinopodium douglasii), Oneleaf Onion (Allium unifolium), Sitka Columbine (Aquilegia formosa), California Mugwort (Artemisia douglasiana), Hairy Ceanothus (Ceanothus oliganthus), Blueblossom (Ceanothus thyrsiflorus), Canyon Dudleya (Dudleya cymosa), Mission Bells (Fritillaria affinis), Broadleaf Stonecrop (Sedum spathulifolium)

Hummingbirds
Bees
Caterpillars
Butterflies

Butterflies and moths supported

0 confirmed and 34 likely

Confirmed Likely

Acronicta perdita

Miranda Underwing

Amphipyra pyramidoides

Orange Tortrix Moth

Argyrotaenia franciscana