Small-Leaf Manzanita

Arctostaphylos × parvifolia

Native to:
United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Ericaceae
Genus:
Arctostaphylos
Species:
Arctostaphylos × parvifolia
USDA Symbol:
ARPA5

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Shrub , Subshrub
Height:
150 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)

Host Plant for Caterpillars

Mendocino saturnia moth (Saturnia mendocino)

Garden & Ecology Notes

Wildlife Value:
birds, bees, butterflies
Deer Resistant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts vigorously from basal burls after fire. Seeds germinated by heat and smoke from wildfires, typical of chaparral-adapted manzanitas.

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:
Prefers rocky or sandy slopes in native habitat

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–90 days
Scarification:
Seed coat scarification required before sowing
Germination Time:
30–180 days
Notes:
Scarification by fire or mechanical abrasion significantly improves germination rates. Seeds may remain dormant for extended periods.

The above propagation data sourced from Claude AI

Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).

Source: Claude AI

ORGHPS Germination Guide: Expose to fluctuation outdoor winter temperatures including freezing for 3 months. Gradually increase light and temperature in the spring. Requires light or the seed is very fine. Surface sow and expose to light. Requires scarification. Nick or rub between sheets of sandpaper. Requires soaking. Place in warm water until seeds swell, usually 24-48 hours. Discard water and any seeds that remain floating. * immerse in boiling water for 20 seconds

Source: Ontario Rock Garden & Hardy Plant Society