Glossy-leaved Aster
Symphyotrichum firmum
Last reviewed: August 2026
Symphyotrichum firmum (Glossy-leaved Aster) is a native wildflower found across the Midwest and Great Lakes region, blooming August through October with small purple flowers that attract bees and butterflies.
Toxicity unknown
Glossy-leaved Aster (Symphyotrichum firmum) is not listed by the ASPCA Animal Poison Control Center (opens in new tab) or the other sources we check, so we have no verdict for it either way. Absence from those lists is not a clearance. If your pet shows symptoms after eating any plant, call the ASPCA at (888) 426-4435.
Light
part sun
Water
medium
Size
24"–48" H × 12"–24" W
Bloom
Aug, Sep, Oct
Native to
IA, IN, MI, MN and 3 more states
Pollinators
bees, butterflies, beetles
Before you buy
Your city may pay you to plant this
Cities and water utilities offer rebates for replacing lawn with native and water-wise plants. We track 445 programs across 44 states, each with a link to the provider and the date we last checked it.
Find rebates in your areaBrowse plants for this ecoregion
Aromatic aster is a sturdy native wildflower that produces masses of small white to pale lavender flowers from late summer through fall. This well-behaved perennial forms neat clumps and provides reliable color when many other plants are finishing their season.
Growing Glossy-leaved Aster
Grow Glossy-leaved Aster in part sun and medium water. Mature plants reach 24 to 48 inches tall and spread 12 to 24 inches wide. Expect low maintenance to keep it looking intentional in a front yard.
In an HOA neighborhood
Glossy-leaved Aster is an HOA-friendly choice. Maintenance level: low. Tidiness: 3 out of 5.
Works well in: foundation, mid zone.
- May appear weedy to those unfamiliar with native plants
- Requires annual cutting back in late winter
Wildlife value
The abundant late-season blooms attract native bees, butterflies, and beneficial beetles when few other nectar sources remain. Seeds provide food for goldfinches and other songbirds through winter.
Common questions
- When does Glossy-leaved Aster bloom?
- Symphyotrichum firmum blooms from August through October, providing late-season color and nectar when many other native plants have finished flowering.
- What pollinators visit Glossy-leaved Aster?
- This native aster attracts bees, butterflies, and beetles, making it valuable for supporting diverse pollinator populations in late summer and fall.
- Where is Symphyotrichum firmum native?
- Glossy-leaved Aster is native to Iowa, Indiana, Michigan, Minnesota, Missouri, Nebraska, and New York, thriving in prairie and woodland edge habitats across these Midwestern and Great Lakes states.
- What growing conditions does this aster prefer?
- Symphyotrichum firmum tolerates a wide range of light conditions from full sun to partial shade and adapts to various moisture levels, making it versatile for different garden situations.
- Is Glossy-leaved Aster HOA-friendly?
- Glossy-leaved Aster is generally an HOA-friendly choice in the right placement, with low maintenance.
These answers were drafted with an AI model from this plant's data. Verify care details with a local expert.
Native range data from vouchered herbarium specimen records and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.
Ready to grow Glossy-leaved Aster? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.
Not sure where to start? Take the 2-minute yard quiz