This herbaceous perennial reaches up to 4 ft tall with bright blue blooms from midsummer to early fall. It prefers full to partial sun and medium to moist clay, loam, or sandy soils. A short-lived perennial that self-seeds readily, it fits well in perennial borders, rain gardens, or woodland edges. Its nectar-rich flowers support pollinators.
Ecological Benefits
The vivid blue flowers provide nectar for hummingbirds, butterflies, and native bees from July through September, enhancing garden wildlife diversity.