Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Fabaceae

Genus:

Astragalus

Species:

Astragalus woodruffii

USDA Symbol:

ASWO

Growth Characteristics

Life Cycle:

Perennial

Growth Habit:

Forb/herb

Height:

30 cm

Light Requirements:

Full Sun

Drought Tolerance:

Medium

Bloom Months:

may,jun,jul

Bloom Colors:

purple, white

Wildlife Benefits

Bees:

★☆☆☆☆ Documented bee visitation (GBIF)

Keystone Species Ranking

Pollen Specialist Bee Keystone:

★★★☆☆ Native pollen specialist bee species supported by this genus (NWF)

Garden & Ecology Notes

Wildlife Value:

bees, native pollinators

Deer Resistant:

Yes

Fire Ecology:

Fire adapted — tolerates or benefits from fire

Fire Notes:

Adapted to low-intensity fire regimes of ponderosa pine forests. Can resprout from rootstock after top damage.

Soil Requirements

Soil Type:

rocky, well-drained, calcareous soil

pH:

7.0 - 8.5 (neutral to slightly alkaline)

Drainage:

excellent drainage required

Moisture:

dry to moderate

Notes:

native to arid, rocky slopes

Propagation & Germination

Stratification:

Cold/moist stratification required — 30–60 days

Scarification:

Seed coat scarification required before sowing

Germination Time:

14–45 days

Notes:

Legume seeds benefit from scarification followed by cold stratification. Erratic germination is common in Astragalus species.

The above propagation data sourced from Claude AI