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sulphur flower
Eriogonum umbellatum var. subaridum
Colorado
- Dimensions
-
Height: 4.0 in. to 1.0 ft.
Spread: 1.0 ft. to 2.0 ft. - Growth Form
- Herbaceous, Subshrub
- Program Association
- Nature in the City, Xeriscape Incentive Program
- Wildlife Uses
- Grassland Birds, Large Mammals, Medium-Sized Mammals, Pollinators/ Invertebrates, Shrubland Birds, Small Mammals, Woodland Birds
- Sun Requirements
- Full Sun
- Water Requirements
- Very Low, Low
- Plant Community
- Foothills
- Season of Bloom
- June, July, August, September, October
- Flower Color
- Yellow Shades
- Leaf Color
- Green Shades
- Aggressiveness
- No City Data
- Design Considerations
- Accent Plant, Evergreen, Long Blooming, Winter Interest
- Other Considerations
- No City Data
- Duration
- Perennial
- Soil Type
- Variable
- Pests/Disease Prone
- No
- Hazards/Toxic
- No City Data.
Notes
Flora of North America recognizes forty varieties of E. umbellatum, all native to the western U.S. Six of those varieties are native to Colorado. Varieties ramulosum, majas, aureum and umbellatum have been documented in Larimer County and are important larval food hosts for fourteen specialist butterflies and adult food host for one bee, one bumblebee and ten specialist butterfly species. Variety subaridum is found in southwestern Colorado and variety porteri is found at higher elevations on both the east and west slope. All the varieties vary slightly in growth habit, flower color and pubescence.
Great for rock gardens.