When does Bog Aster bloom?

Bog Aster blooms from August through October, providing late-season nectar when many other flowers have finished.

What pollinators visit Symphyotrichum puniceum?

Bog Aster attracts bees, butterflies, and beetles with its purple fall flowers.

Where is Bog Aster native?

This species is native to 31 states across eastern and central North America, from Maine to Texas and west to North Dakota.

What growing conditions does Bog Aster prefer?

As its name suggests, Bog Aster thrives in consistently moist to wet soils and can tolerate full sun to partial shade conditions.

Is Bog Aster toxic to livestock?

The USDA PLANTS Database does not flag Bog Aster as toxic to livestock.

Is Bog Aster HOA-friendly?

Bog Aster takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Bog Aster

Name: Pollinator Patch
Author: Pollinator Patch

Symphyotrichum puniceum

Last reviewed: June 2026

Symphyotrichum puniceum (Bog Aster) is a native wildflower found across eastern and central North America that blooms from August through October. This moisture-loving perennial produces purple flowers that attract bees, butterflies, and beetles.

Bog Aster (Symphyotrichum puniceum) — Photo: Robert H. Mohlenbrock. USDA NRCS. 1995. Northeast wetland flora: Field office guide to plant species. Northeast National Technical Center, Chester. Courtesy of USDA NRCS Wetland Science Institute. / Wikimedia Commons (Public domain)

The USDA PLANTS Database (opens in new tab) does not flag Bog Aster as toxic to livestock.

Light

part sun

Water

high

Size

24"–60" H × 12"–36" W

Bloom

Aug, Sep, Oct

Native to

AL, CT, DE, GA and 27 more states

Pollinators

bees, butterflies, beetles

Bog aster is a tall native perennial that produces masses of small purple flowers from late summer through fall. This moisture-loving wildflower naturalizes well in consistently wet areas and can form attractive colonies over time.

Growing Bog Aster

Grow Bog Aster in part sun and high water. Mature plants reach 24 to 60 inches tall and spread 12 to 36 inches wide. Expect low maintenance to keep it looking intentional in a front yard.

In an HOA neighborhood

Bog Aster takes more care to keep looking intentional in a front yard. Maintenance level: low. Consider it for backyard or mid-zone beds rather than the street edge.

Works well in: backyard only.

Very tall and informal appearance
Can look weedy when dormant
May spread aggressively in wet conditions

Wildlife value

The late-season blooms provide crucial nectar for migrating butterflies and native bees when few other flowers remain. Seeds support songbirds through winter.

Common questions

When does Bog Aster bloom?: Bog Aster blooms from August through October, providing late-season nectar when many other flowers have finished.
What pollinators visit Symphyotrichum puniceum?: Bog Aster attracts bees, butterflies, and beetles with its purple fall flowers.
Where is Bog Aster native?: This species is native to 31 states across eastern and central North America, from Maine to Texas and west to North Dakota.
What growing conditions does Bog Aster prefer?: As its name suggests, Bog Aster thrives in consistently moist to wet soils and can tolerate full sun to partial shade conditions.
Is Bog Aster toxic to livestock?: The USDA PLANTS Database does not flag Bog Aster as toxic to livestock.
Is Bog Aster HOA-friendly?: Bog Aster takes more care to look intentional in a front yard. Consider it for backyard or mid-zone beds rather than the street edge.

Native range data from the USDA PLANTS Database and regional native plant society lists. Pollinator and host plant associations compiled from GBIF, iNaturalist, and published ecological literature.

Ready to grow Bog Aster? Add it to your garden in Pollinator Patch to track it and get season-by-season care guidance.

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