Bigleaf Aster

Eurybia macrophylla

Native to:
Canada, Prince Edward I., United States

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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.

Source: Ontario Rock Garden & Hardy Plant Society