Fabaceae
Astragalus purshii var. purshii
Astragalus purshii var. purshii var. purshii
Also known as Astragalus purshii var. ordensis, Astragalus purshii var. gavisus, Xylophacos incurvus, Phaca mollissima
Flowering Plants · Native Plants · Astragalus · Milkvetch · Native · Western North America · Fabaceae · Perennial · Wildflower · Legume · Nitrogen-Fixing · Pollinator
Pursh's milkvetch (var. purshii) is the most widespread variety of the species, ranging from the Canadian Rockies through the western United States, and is occasionally available through native plant nurseries. It thrives in open, partially shaded sites with well-draining, sandy or rocky soil and moderate watering during the growing season. As a nitrogen-fixing legume, it benefits surrounding plants and is a rewarding choice for experienced gardeners cultivating western North American native pla
Growing conditions
The details behind the basics
- Daily light
- 5 hours
- Watering
- Water moderately; keep soil evenly moist but never waterlogged · 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
- 14 in apart
- Growth rate
- Moderate
- Root depth
- Deep
- Flowers
- White
- Foliage
- Green · Fine
Ecology & origin
Where it belongs and what it brings
- Native to
- Alberta, British Columbia, California, Colorado, Idaho, Manitoba, Montana, Nevada, North Dakota, Oregon, South Dakota, Utah, Washington, Wyoming
- Attracts
- Bees, Butterflies
Sources: trefle, usda
More Astragalus
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Astragalus purshii var. tinctus
Astragalus purshii var. tinctus
Partial Sun · Moderate · Moderate
Astragalus curvicarpus
Astragalus curvicarpus
Partial Sun · Moderate · Fast
Astragalus mollissimus var. mollissimus
Astragalus mollissimus var. mollissimus
Partial Sun · Moderate · Moderate
Liquorice milk-vetch
Astragalus glycyphyllos
Partial Sun · Moderate · Moderate
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