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© Ernie Marx

sulphur flower
Eriogonum umbellatum


  United States

Dimensions
Height: 4.0 in. to 1.0 ft.
Spread: 1.0 ft. to 2.0 ft.
Growth Form
Herbaceous, Subshrub
Program Association
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, Mountains, Subalpine
Season of Bloom
July, August, September
Flower Color
Red Shades, White Shades, Yellow Shades
Leaf Color
Green Shades
Aggressiveness
No City Data
Design Considerations
Accent Plant, Evergreen, Long Blooming, Streetscape Plants, 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.