Tufted Milkvetch

Astragalus spatulatus

Tufted Milkvetch

Matt Lavin from Bozeman, Montana, USA

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Fabaceae
Genus:
Astragalus
Species:
Astragalus spatulatus

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
1-2 ft
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
may, jun
Bloom Colors:
Purple

Native Range

United States: Colorado, Idaho, Kansas, Montana, North Dakota, Nebraska, South Dakota, Utah, Wyoming, Canada: Alberta, Saskatchewan

Keystone Species Ranking

Bee Keystone:
★★★☆☆ Based on number of native bee species using this genus for pollen and nectar (Source: National Wildlife Federation)

Host Plant for Caterpillars

Shasta Blue (Plebejus shasta)

Soil Requirements

Soil Type:
sandy, well-drained, nutrient-poor soil
pH:
6.5 - 7.5 (neutral to slightly alkaline)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
native to arid regions; prefers open, sunny locations