Polygonaceae
Eriogonum umbellatum var. umbellatum
Eriogonum umbellatum var. umbellatum var. umbellatum
Also known as Eriogonum umbellatum var. monocephalum, Eriogonum latum, Eriogonum tolmieanum, Eriogonum umbellatum var. californicum
Flowering Plants · Native Plants · Sulfur Buckwheat · Native · Xeriscape · Rocky Mountains · Perennial · Wildflower · Pollinator · Groundcover · Rock Garden · Mountain West
The nominate variety of sulfur buckwheat is a classic western native ground-hugging perennial valued for its bright yellow flower clusters and silvery foliage. Plant it in well-drained, sandy or rocky soil in partial shade to full sun; it handles dry summers with ease once established. This variety is a great choice for xeriscape, native, and rock garden designs across the Mountain West.
Growing conditions
The details behind the basics
- Daily light
- 4 hours
- Watering
- Water deeply but infrequently; allow soil to dry between waterings · Every 10-14 days
- Maintenance
- Low
- Soil
- rocky
- Soil pH
- 6.5–8
- Temperature
- -25°F to 100°F
- Cycle
- Perennial
Hardiness
USDA 4b-10b
Form & growth
Mature size and habit
- Mature height
- 12 in – 3 ft
- Spread
- 2 ft
- Spacing
- 18 in apart
- Growth rate
- Slow
- Root depth
- Deep
- Flowers
- Yellow
- Foliage
- Green · Coarse
Ecology & origin
Where it belongs and what it brings
- Native to
- Colorado, Idaho, Montana, New Mexico, Utah, Wyoming
- Attracts
- Bees, Butterflies
Sources: trefle, usda
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