The giant mountain aster is a native North American plant that spreads by rhizomes to form colonies. The plant can grow up to 3 to 6 feet tall and produces purple flowers with white to pale yellow centers, typically blooming between June and August.

Thrives in full or partial sun exposure.
Prefers well-drained, loam soil and normal to moist conditions. It can naturally be found in moist forests, swamps, and along stream or lake shorelines.
The flowers attract beneficial pollinators like bees and butterflies.