Cushion Buckwheat
Eriogonum ovalifolium
- Native to:
- Canada, United States
iNaturalist: © joeysantore (iNaturalist #33236174)






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Polygonaceae
- Genus:
- Eriogonum
- Species:
- Eriogonum ovalifolium
- USDA Symbol:
- EROV
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb , Subshrub
- Height:
- 30 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- High
- Bloom Months:
- may,jun,jul,aug
- Bloom Colors:
- white, yellow, cream, pink
- Ground Cover:
- Yes
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
- Caterpillars:
- ★☆☆☆☆ Recorded caterpillar host plant (HOSTS Database)
Keystone Species Ranking
- Pollen Specialist Bee Keystone:
- ★★★★☆ Native pollen specialist bee species supported by this genus (NWF)
Host Plant for Caterpillars
Dotted Blue (Euphilotes enoptes), Lupine Blue (Plebejus lupini), Square-spotted blue (Euphilotes battoides)
Reported Fauna Sightings
Butterflies:Euphilotes baueri, Euphilotes stanfordorum
Garden & Ecology Notes
- Wildlife Value:
- butterflies, native bees, birds
- Deer Resistant:
- Yes
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts from woody caudex after fire. Common in fire-prone sagebrush and mountain communities.
Soil Requirements
- Soil Type:
- rocky, well-drained, sandy soil
- pH:
- 6.0 - 8.0 (neutral to slightly alkaline)
- Drainage:
- excellent drainage required
- Moisture:
- dry to moderate
- Notes:
- thrives in open, sunny locations
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–90 days
- Germination Time:
- 14–60 days
- Notes:
- Requires light for germination. Germination can be erratic; cold stratification improves rates.
The above propagation data sourced from Claude AI
Pre-treatment: Cold-moist stratification for 30 days at 1–5°C (34–41°F).; then Cold-moist stratification for 60 days.
Source: Claude AI
ORGHPS Germination Guide: Sow @ 4C for 3 months, then place @ 20C for 3 months.