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Blue Mistflower
Conoclinium coelestinum
PerennialBlue Mistflower
Conoclinium coelestinum
Tap to flip backGrowing Conditions
Light
Sun – Part Shade
Water
Moist – Medium
Soil
Clay, Loam
Size
2-3'
Bloom
Blue/Purple, Aug–Oct
Why Grow It
Late Bloomer
Provides nectar when others have faded
Ground Cover
Fills in to form a living carpet
Did You Know?
A butterfly magnet in late fall when few other blue flowers are blooming.
Spreads by rhizomes to form dense blue carpets — nature's ground cover.
Looks like a wild ageratum — closely related to the popular garden annual.
Wildlife Value
🦋
Late Season Nectar
Critical fall nectar source for migrating Monarchs and other butterflies
🐝
Native Bee Haven
Visited by many native bee species in late season
Good Companions
🌸 Cardinal Flower
🌿 Blue Vervain
⭐ Joe Pye Weed
Planting Guide
- Plant in moist soil in sun to part shade; ideal near streams or rain gardens
- Space 18–24″ apart; spreads aggressively by rhizomes
- Use root barriers in small gardens to contain its spread
Heads Up
Spreads by Root
Spreads quickly; may need containment
Plant Details
Made with ♥ by Lu Li