Bigleaf Aster
Eurybia macrophylla
- Native to:
- Canada, Prince Edward I., United States
iNaturalist: © douggoldman (iNaturalist #136723010)






Taxonomy
- Division:
- Magnoliophyta | - Flowering plants
- Family:
- Asteraceae
- Genus:
- Eurybia
- Species:
- Eurybia macrophylla
- USDA Symbol:
- EUMA27
Growth Characteristics
- Life Cycle:
- Perennial
- Growth Habit:
- Forb/herb
- Height:
- 90 cm
- Light Requirements:
- Full Sun,Part Shade,Shade
- Drought Tolerance:
- Medium
- Bloom Months:
- jul,aug,sep
- Bloom Colors:
- white, lavender, pale violet
- 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
- Caterpillar Keystone:
- ★★☆☆☆ Butterfly & moth species supported by this genus (NWF)
- Pollen Specialist Bee Keystone:
- ★★☆☆☆ Native pollen specialist bee species supported by this genus (NWF)
Host Plant for Caterpillars
Dejongia , Dichomeris levisella, Phaneta alterana, Phaneta perfuscana, Tischeria astericola
Reported Fauna Sightings
Bees: Half-black bumble bee (Bombus vagans) Moths:Acrocercops astericola, Scrobipalpula manierreorum
Garden & Ecology Notes
- Wildlife Value:
- bees, butterflies, birds
- Deer Resistant:
- Yes
- Fire Ecology:
- Fire adapted — tolerates or benefits from fire
- Fire Notes:
- Resprouts from rhizomes following fire; tolerates periodic burns in woodland settings.
Soil Requirements
- Soil Type:
- rich, well-drained loamy soil
- pH:
- 5.5 - 7.0 (slightly acidic to neutral)
- Drainage:
- tolerates poor drainage
- Moisture:
- consistently moist
- Notes:
- prefers shaded woodland areas
Propagation & Germination
- Stratification:
- Cold/moist stratification required — 30–60 days
- Germination Time:
- 14–42 days
- Notes:
- Seeds require light for germination. Cold stratification improves germination rates.
The above propagation data sourced from Claude AI
Pre-treatment: None required
Establishment: Seeds collected in Acadia National Park, Maine by Martin van der Grinten during September/October by hand harvesting. The range of Large-leaved Aster is from Quebec to Minnesota and south to Georgia. Found in semi-shaded areas or dry woods.
Source: npn.rngr.net
ORGHPS Germination Guide: Sow @ 4C for 3 months, then place @ 20C for 3 months.