Cleveland's Milkvetch

Astragalus clevelandii

Native to:
United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Fabaceae
Genus:
Astragalus
Species:
Astragalus clevelandii
USDA Symbol:
ASCL2

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
60 cm
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
mar,apr,may,jun
Bloom Colors:
purple, cream

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:
Resprouts from root crown after fire. Common in post-fire chaparral and coastal sage scrub regeneration.

Soil Requirements

Soil Type:
sandy, well-drained, nutrient-poor soil
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
native to arid regions, prefers open, sunny areas

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Scarification:
Seed coat scarification required before sowing
Germination Time:
10–30 days
Notes:
Seed coat scarification improves germination success. Seeds may benefit from inoculation with Rhizobium bacteria for nitrogen fixation.

The above propagation data sourced from Claude AI

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

Source: Claude AI

ORGHPS Germination Guide: Put in deep pot; protect from damping off

Source: Ontario Rock Garden & Hardy Plant Society