Polygonaceae
Eriogonum umbellatum var. cladophorum
Eriogonum umbellatum var. cladophorum var. cladophorum
Also known as Eriogonum rydbergii
Flowering Plants · Native Plants · Eriogonum · Sulphur Flower · Buckwheat · Wyoming Native · Rock Garden · Alpine Perennial · Xeriscape · Rare Native · Pollinator Plant · High Elevation
Cladophorum Sulphur Flower is a rare variety of buckwheat native to Wyoming, making it a prized specimen for collectors of native plants and high-elevation rock garden enthusiasts. Plant in fast-draining, gravelly or sandy soil in a sunny spot and water sparingly, as it is adapted to the cold, dry conditions of the Rocky Mountain region. This slow-growing perennial is exceptionally low maintenance once established and produces cheerful yellow flower clusters that support native pollinators.
Growing conditions
The details behind the basics
- Daily light
- 6 hours
- Watering
- Water lightly until soil is barely moist; allow soil to dry completely 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
- Wyoming
- Attracts
- Bees, Butterflies, Moths
Sources: trefle, usda
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