Serpentine Manzanita

Arctostaphylos obispoensis

Native to:
United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Ericaceae
Genus:
Arctostaphylos
Species:
Arctostaphylos obispoensis
USDA Symbol:
AROB

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Shrub
Height:
180 cm
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
feb,mar,apr
Bloom Colors:
white, pink
Ground Cover:
Yes
Evergreen Shrub:
Yes
Landscaping Shrub:
Yes

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)

Keystone Species Ranking

Caterpillar Keystone:
★★★★☆ Butterfly & moth species supported by this genus (NWF)
Pollen Specialist Bee Keystone:
★★☆☆☆ Native pollen specialist bee species supported by this genus (NWF)

Garden & Ecology Notes

Wildlife Value:
birds, bees, butterflies, small mammals
Deer Resistant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts vigorously from basal burl after fire. Populations historically maintained by periodic fire in chaparral communities.

Soil Requirements

Soil Type:
sandy, acidic, nutrient-poor soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
native to chaparral and coastal scrub habitats

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–90 days
Scarification:
Seed coat scarification required before sowing
Germination Time:
30–120 days
Notes:
Hard seed coat requires scarification or passage through bird digestive system. Cold stratification improves germination rates significantly.

The above propagation data sourced from Claude AI