Onestem Fleabane
Erigeron grandiflorus
- Native to:
- Canada, Russia, United States
iNaturalist: © matthias22 (iNaturalist #254874636)
Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Asteraceae
- Genus:
- Erigeron
- Species:
- Erigeron grandiflorus
- USDA Symbol:
- ERSI3
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb , Subshrub
- Height:
- 30 cm
- Light Requirements:
- Full Sun
- Drought Tolerance:
- Medium
- Bloom Months:
- jun,jul,aug
- Bloom Colors:
- blue, purple, lavender, white
Wildlife Benefits
- Bees:
- ★☆☆☆☆ Documented bee visitation (GBIF)
- Butterflies & Moths:
- ★☆☆☆☆ Documented Lepidoptera association (GBIF)
Keystone Species Ranking
- Caterpillar Keystone:
- ★★★☆☆ Butterfly & moth species supported by this genus (NWF)
- Pollen Specialist Bee Keystone:
- ★★★★☆ Native pollen specialist bee species supported by this genus (NWF)
Reported Fauna Sightings
Bees: Forest bumble bee (Bombus sylvicola)
Garden & Ecology Notes
- Wildlife Value:
- bees, butterflies, small pollinators
- Deer Resistant:
- Yes
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–30 days
- Notes:
- Seeds require light for germination; sow on surface and do not cover.
The above propagation data sourced from Claude AI
Pre-treatment: None required
Establishment: The seeds were collected at Alpine Visitor Center (98-214s) on 8/12/98. E. simplex is found at high elevations from Montana to Oregon and south to New Mexico and Arizona.
Source: npn.rngr.net
ORGHPS Germination Guide: Sow @ 20C. Germinates within 3 months.