Fabaceae
White sweetvetch
Hedysarum sulphurescens
Also known as Hedysarum flavescens, White hedysarum, Sweetvetch, Alpine sweetvetch
Flowering Plants · Native Plants · Sweetvetch · Hedysarum · Legume · Native Perennial · Mountain Plant · Nitrogen Fixer · Wildflower · Rocky Mountain · Pollinator · Meadow
White sweetvetch is a hardy native legume perennial from the Rocky Mountain and Great Basin regions, well-suited to open meadows and mountain garden settings. It grows best in well-drained, moderately fertile soil with partial to full sun and benefits from infrequent but deep watering. As a nitrogen-fixing legume, it naturally enriches the soil and provides attractive white to pale yellow flower spikes for pollinators.
Growing conditions
The details behind the basics
- Daily light
- 5 hours
- Watering
- Water thoroughly to moisten the root zone; allow the top 1-2 inches of soil to dry before watering again · Every 7-10 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 6–7.5
- Temperature
- -25°F to 95°F
- Cycle
- Perennial
- Propagation
- Seed, Division, Cutting
Hardiness
USDA 4b-9b
Form & growth
Mature size and habit
- Mature height
- 12 in – 4 ft
- Spread
- 4 ft
- Spacing
- 24 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- Yes
- Foliage
- Fine
Ecology & origin
Where it belongs and what it brings
- Native to
- Idaho, Montana, Oregon, Washington, Wyoming
- Attracts
- Bees, Butterflies
Sources: trefle, usda
More Hedysarum
Related plants from the same genus
Alpine sweetvetch
Hedysarum alpinum
Partial Sun · Moderate · Fast
Utah sweet-vetch
Hedysarum boreale
Full Sun · Moderate · Moderate
Hedysarum boreale subsp. boreale
Hedysarum boreale subsp. boreale
Partial Sun · Moderate · Moderate
Hedysarum boreale subsp. mackenziei
Hedysarum boreale subsp. mackenziei
Partial Sun · Moderate · Moderate
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