Eriogonum umbellatum var. speciosum
Eriogonum umbellatum var. speciosum var. speciosum
The showy sulfur buckwheat is a striking California native perennial valued for its clusters of bright yellow flowers and adaptability to poor, well-drained soils. It grows slowly but rewards patience with a long bloom season that is highly attractive to native bees and butterflies. Minimal pruning and very little supplemental water are needed once the plant is established.
Care Level
Low
Sun
Partial Shade
Water
Moderate
Growth Rate
Slow
Mature Height
18″ – 36″
Soil
loam
Life Cycle
Perennial
Spacing
18″
Flowers
yellow
Watering Schedule
Every 10-14 Days • Water Moderately; Allow Soil To Dry Nearly Completely Between Waterings
Soil pH
6.5 – 8
Temperature
-20° – 90°F
Mature Spread
up to 24″
Root Depth
Medium
Foliage
Coarse
Native to
Attracts
Sources
Data: trefle, usda
No nurseries currently have this species in stock.