Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Ericaceae

Genus:

Arctostaphylos

Species:

Arctostaphylos rainbowensis

USDA Symbol:

ARRA7

Growth Characteristics

Life Cycle:

Perennial

Growth Habit:

Shrub

Height:

300 cm

Light Requirements:

Full Sun

Drought Tolerance:

High

Bloom Months:

jan,feb,mar

Bloom Colors:

white, pink

Evergreen Shrub:

Yes

Landscaping Shrub:

Yes

Wildlife Benefits

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, butterflies, small mammals

Fire Ecology:

Fire adapted — tolerates or benefits from fire

Fire Notes:

Resprouts from lignotuber after fire; seeds also germinate in response to fire cues.

Soil Requirements

Soil Type:

sandy, well-drained, nutrient-poor soil

pH:

5.5 - 7.0 (slightly acidic to neutral)

Drainage:

excellent drainage required

Moisture:

dry to moderate

Notes:

Native to chaparral regions, prefers rocky slopes

Propagation & Germination

Stratification:

Cold/moist stratification required — 30–60 days

Scarification:

Seed coat scarification required before sowing

Germination Time:

30–90 days

Notes:

Seeds require scarification (hot water or acid) followed by cold stratification for germination.