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Eupatorium coelestinum

Mist Flower/Hardy Ageratum / Syn. Conoclinium coelestinum

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The fuzzy blue flowers of hardy ageratum top attractive red stems in late summer and early fall. Easy to grow, it naturalizes readily and works well as a filler or groundcover planting. Its brilliant blue flowers make a unique and long-lasting cut flower. In warmer zones and loose soils, plan for quite a bit of spreading.

Benefits

  • Flowers attract bees, butterflies, and skippers
  • Easy to grow, flowers from mid-summer into autumn
  • Makes a great groundcover
  • Attracts insects favored by birds

Homeowner Growing and Maintenance Tips

Mistflower is adapted to most soil types, but is especially suited to heavy soil rich in organic matter. Natural stands are found on moist to wet sites, such as low woods, wet meadows, and ditches. It grows best in full sun, but will tolerate light shade.


Height
2-3 Feet

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Spread
2-3 Feet

USDA Hardiness Zone 4-9

Native Range

Low woods and moist meadows, stream banks, ditches, base of bluffs; New Jersey and Illinois, south to Texas and Florida

Distribution Maps by State and County

Native Trivia

In addition to butterflies, late summer and fall blooming asteraceae species provide food for many insects, some of which are in turn food for insect-eating birds like Bluebirds, Orioles, Warblers and Red-wing Blackbirds.


"Skippers and Swallowtails are particularly fond of Mist Flower nectar!"

Good Companions
Bottle Gentian (Gentiana clausa)

Characteristics & Attributes

Plan Sub Group
  • Low Perennials
  • Medium Perennials
Exposure
  • Filtered Shade
  • Morning Sun / Afternoon Shade
  • Sun
Soil
  • Well-drained
  • Wide soil tolerance
Soil Moisture Preference
  • Average
  • Moist
  • Moist but well-drained
Attracts Wildlife
  • Beneficial insects
  • Butterflies
Bloom Time
  • Fall
  • Late Summer
Critter Resistance
  • Deer Resistant
  • Rabbit Resistant
Habitat Collection
  • Butterfly
Native Habitat
  • Forest
  • Grassland
  • Riparian, wetland
Foliage Color
  • Green
Uses
  • Border
  • Container
  • Cut or dried flower
  • Ground cover
  • Mass plant
  • Meadow
  • Naturalizes
Native to
  • Alabama
  • Arkansas
  • Delaware
  • District of Columbia
  • Florida
  • Georgia
  • Illinois
  • Indiana
  • Kansas
  • Kentucky
  • Louisiana
  • Maryland
  • Michigan
  • Mississippi
  • Missouri
  • Nebraska
  • New Jersey
  • New York
  • North Carolina
  • Ohio
  • Oklahoma
  • Pennsylvania
  • South Carolina
  • Tennessee
  • Texas
  • Virginia
  • West Virginia