Blue Mistflower is a native wildflower that produces clouds of bright blue-violet blooms in late summer and autumn when most other flowers have faded. Often called wild ageratum, its fluffy flower heads are magnets for migrating butterflies and native bees seeking late-season nectar. It spreads vigorously through underground rhizomes and self-seeding, forming large colonies in moist sites.
Best time to see a Blue Mistflower
The best time to see a Blue Mistflower is September–October, when about 66% of U.S. sightings happen, based on 39,023 research-grade iNaturalist observations.
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