Smooth Sulphur Flower
Eriogonum umbellatum var. glaberrimum var. glaberrimum
Distinguished by its notably smooth, glabrous foliage, this California and Oregon native buckwheat is a hardy, slow-growing perennial suited to partially shaded rocky or gravelly sites. Plant in well-draining soil and water sparingly once roots are established to mimic its natural habitat conditions. It is a rewarding choice for native plant enthusiasts seeking low-maintenance pollinator plants.
Care Level
Low
Sun
Partial Shade
Water
Moderate
Growth Rate
Slow
Mature Height
12″ – 36″
Soil
rocky
Life Cycle
Perennial
Spacing
18″
Flowers
yellow
Watering Schedule
Every 10-14 Days • Water Deeply But Infrequently; Allow Soil To Dry Between Waterings
Soil pH
6.5 – 8
Temperature
-25° – 100°F
Mature Spread
up to 24″
Root Depth
Deep
Foliage
Coarse
Native to
Attracts
Sources
Data: trefle, usda
No nurseries currently have this species in stock.