Polygonaceae
Dichrocephalum Sulphur Flower
Eriogonum umbellatum var. dichrocephalum var. dichrocephalum
Also known as Eriogonum dichrocephalum, Eriogonum umbellatum var. aridum, Eriogonum aridum, Eriogonum umbellatum subsp. aridum
Flowering Plants · Native Plants · Buckwheat · Native · Wildflower · Drought-Adapted · Rocky-Soil · Pacific-Northwest · Pollinator · Perennial · Alpine
This western native buckwheat variety thrives in rocky, well-drained soils with partial shade and minimal supplemental water once established. It is well-suited to xeric or naturalistic garden designs in its native range across the Pacific Northwest and Great Basin. Avoid overwatering and heavy clay soils, which can cause root rot.
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
- Yes
- Foliage
- Coarse
Ecology & origin
Where it belongs and what it brings
- Native to
- California, Idaho, Montana, Nevada, Oregon, Utah, Wyoming
- Attracts
- Bees, Butterflies, Moths
Sources: trefle, usda
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