Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Ericaceae

Genus:

Arctostaphylos

Species:

Arctostaphylos columbiana

USDA Symbol:

ARCO3

Growth Characteristics

Life Cycle:

Perennial

Growth Habit:

Shrub , Tree

Height:

300 cm

Light Requirements:

Full Sun,Part Shade,Shade

Drought Tolerance:

High

Bloom Months:

apr,may,jun

Bloom Colors:

white, pink

Evergreen Shrub:

Yes

Landscaping Shrub:

Yes

Wildlife Benefits

Bees:

★☆☆☆☆ Documented bee visitation (GBIF)

Butterflies & Moths:

★☆☆☆☆ Documented Lepidoptera association (GBIF)

Caterpillars:

★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)

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)

Host Plant for Caterpillars

Reported Fauna Sightings

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 burls after fire. Crown-sprouting strategy common in Pacific manzanitas adapted to periodic low-intensity fires.

Soil Requirements

Soil Type:

sandy, acidic, nutrient-poor soil

pH:

5.0 - 6.5 (acidic to slightly acidic)

Drainage:

excellent drainage required

Moisture:

dry to moderate

Notes:

Prefers open, sunny locations; often found in coastal areas.

Propagation & Germination

Stratification:

Cold/moist stratification required — 60–90 days

Scarification:

Seed coat scarification required before sowing

Germination Time:

30–90 days

Notes:

Seeds have hard coat and embryo dormancy. Scarification plus cold stratification required. Germination can be erratic even with proper treatment.

The above propagation data sourced from Claude AI