Waldo Manzanita

Arctostaphylos canescens subsp. canescens

Native to:
United States

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Ericaceae
Genus:
Arctostaphylos
Species:
Arctostaphylos canescens subsp. canescens
USDA Symbol:
ARCI

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Shrub
Height:
200 cm
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
feb,mar,apr
Bloom Colors:
white, pink
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 burls after fire and may also germinate from seed bank; adapted to California's fire regime with thick bark and lignotuber structures.

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 coastal or chaparral habitats

Propagation & Germination

Stratification:
Cold/moist stratification required — 60–90 days
Scarification:
Seed coat scarification required before sowing
Germination Time:
30–180 days
Notes:
Seeds have hard seed coats and double dormancy; scarification plus cold stratification improves germination rates which can be slow and erratic.

The above propagation data sourced from Claude AI

Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).; then Cold-moist stratification for 60 days.

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