Polygonaceae
Eriogonum umbellatum var. hypoleium
Eriogonum umbellatum var. hypoleium var. hypoleium
Also known as Eriogonum umbellatum subsp. hypoleium
Flowering Plants · Native Plants · Sulfur Buckwheat · Native · Washington · Rock Garden · Perennial · Wildflower · Drought Adapted · Pollinator · Groundcover · Buckwheat
This Washington native sulfur buckwheat variety thrives in well-drained, gritty or rocky soils with partial shade, making it ideal for Pacific Northwest rock gardens. Water moderately during the growing season and reduce irrigation in winter. It is a tough, low-maintenance plant once established and rarely needs fertilizing.
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
- Washington
- Attracts
- Bees, Butterflies
Sources: trefle, usda
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