Sulfur-buckwheat
Eriogonum umbellatum
Last reviewed: June 2026
Sulfur-buckwheat (Eriogonum umbellatum) is not on the ASPCA Animal Poison Control Center toxic plant list for dogs or cats (aspca.org, last reviewed 2026-05-21). If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
full sun
Water
low
Size
4"–24" H × 6"–36" W
Bloom
May, Jun, Jul, Aug
Native to
AZ, CA, CO, ID and 7 more states
Pollinators
bees, butterflies, beetles
Browse plants for this ecoregion
Sulfur-buckwheat is a striking native perennial with rounded clusters of bright yellow flowers that rise above a compact mat of silvery-green foliage. The flowers age to coppery orange, providing visual interest from late spring through summer. This drought-tolerant plant forms an attractive low mound that works well in rock gardens or as a border plant.
In an HOA neighborhood
Sulfur-buckwheat is an HOA-friendly choice. Maintenance level: low. Tidiness: 4 out of 5.
Works well in: front yard, foundation, street edge, mid zone, backyard only.
- Seed heads may appear untidy if not deadheaded after blooming
Wildlife value
Sulfur-buckwheat is a valuable pollinator plant, particularly attractive to native bees, butterflies, and beetles. The abundant blooms provide nectar and pollen during the summer months.
Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Does Sulfur-buckwheat fit your yard? Open it in Pollinator Patch to check it against your sun, soil, and HOA-conscious filters.