
Sulfur-buckwheat
Eriogonum umbellatum
Sulfur-buckwheat is a tough, low-growing western native perennial that produces bright yellow flower clusters attractive to pollinators. Plant it in full sun with excellent drainage — sandy or gravelly soil is ideal — and avoid overwatering or rich, amended soils that can cause root rot. Once established it is highly drought tolerant and requires virtually no maintenance.
Care Level
Low
Sun
Partial Shade
Water
Moderate
Growth Rate
Slow
Mature Height
12″ – 48″
Soil
loam
Life Cycle
Perennial
Spacing
24″
Watering Schedule
Every 14-21 Days Once Established • Water Lightly; Allow Soil To Dry Completely Between Waterings — This Plant Thrives In Dry, Rocky Conditions
Soil pH
6.5 – 8
Temperature
-25° – 95°F
Mature Spread
up to 36″
Root Depth
Medium
Foliage
Coarse
Native to
Attracts
Sources
Data: trefle, usda
Image: trefle.io — Taken Aug 4, 2022 by Shawna Davis (cc-by-sa)
No nurseries currently have this species in stock.