Swamp Aster

Purple-stemmed Aster

Symphyotrichum puniceum

A striking wetland native known for its strong reddish-purple stems and bright lavender daisy-like flowers. Purple-stemmed Aster blooms in late summer through early autumn, producing abundant blossoms with golden centers that attract a wide diversity of pollinators. The rich colored stems and tall upright growth give this plant strong visual presence in wet meadows and marsh edges.

 

Waabishki-bag flowers during the important transition from summer to fall. In Anishinaabe understanding, late-season asters play a vital role in feeding pollinators preparing for winter. These bright star-like flowers help sustain life during the final cycle of the growing season.

A Wildflower of Wet Meadows and Marsh Edges

Purple-stemmed Aster grows naturally in wetlands, wet meadows, marshes, and along streambanks where soils remain moist or seasonally wet. It thrives in full sun to partial shade and is an excellent plant for rain gardens, wetland restoration, and naturalized plantings.

Growing Information

Height: 3–6 ft

Spread: 2–3 ft

Light: Full sun to part shade

Soil: Moist to wet soils

Hardiness: Zone 3–8

Growth Rate: Moderate

Best planted in wet meadows, rain gardens, pond edges, and wetland restoration areas where it can naturalize and support pollinators.

Ecological Importance

Waabishki-bag:

Provides critical late-season nectar for bees and butterflies

Supports migrating pollinators preparing for winter

Adds structure and color to wetland plant communities

Strengthens biodiversity in marsh and meadow ecosystems

Larval host plant for the Northern Crescent (Phyciodes cocyta) and used by 108 other species of Lepidoptera.
• Silvery Checkerspot (Chlosyne nycteis)
• Wavy-lined Emerald Moth (Synchlora aerata)
• Harris’s Three-spot Moth (Harrisimemna trisignata)

Planting to Protect
Restoring to Thrive ?
Origin Native Plants ?

3.5 inch Pots