Fabaceae
Astragalus purshii var. glareosus
Astragalus purshii var. glareosus var. glareosus
Also known as Astragalus booneanus, Tragacantha glareosa, Astragalus leucocystis, Astragalus lanocarpus
Flowering Plants · Native Plants · Native · Milkvetch · Astragalus · Wildflower · Fabaceae · Nitrogen-Fixing · Rocky Soil · Western Usa · Pollinator · Restoration
Pursh's woollypod milkvetch is a specialist native perennial best suited to rocky, well-drained soils in its Pacific Northwest and Great Basin homeland. It thrives in open sunny to partly shaded slopes and requires minimal fertilization due to its nitrogen-fixing roots. This plant is extremely challenging to cultivate outside its native habitat and is best appreciated in native plant gardens or restoration projects.
Growing conditions
The details behind the basics
- Daily light
- 6 hours
- Watering
- Water moderately, allowing soil to dry slightly between waterings · Every 7-10 days during growing season
- Maintenance
- High
- Soil
- loam
- Soil pH
- 5.6–7.5
- Temperature
- -40°F to 85°F
- Cycle
- Perennial
Hardiness
USDA 3a-8b
Form & growth
Mature size and habit
- Mature height
- 8 in – 16 in
- Spread
- 12 in
- Spacing
- 18 in apart
- Growth rate
- Moderate
- Root depth
- Deep
- Flowers
- White
- Foliage
- Green · Fine
Ecology & origin
Where it belongs and what it brings
- Native to
- Idaho, Nevada, Oregon, Utah, Washington
- Attracts
- Bees, Butterflies
Sources: trefle, usda
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