Arcane Milkvetch

Astragalus obscurus

Taxonomy

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

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
6 in - 1 ft
Light Requirements:
Full Sun
Drought Tolerance:
High
Bloom Months:
may, jul
Bloom Colors:
yellow
Ground Cover:
Yes

Native Range

United States: California, Idaho, Nevada, Oregon

Keystone Species Ranking

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

Soil Requirements

Soil Type:
sandy, well-drained, nutrient-poor soil
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
dry to moderate
Notes:
native to arid and semi-arid regions