Conoclinium coelestinum (L.) DC.
Blue mistflower, Wild ageratum, Blue boneset, Mistflower
Asteraceae (Aster Family)
Synonym(s): Eupatorium coelestinum
USDA Symbol: Coco13
Mistflower grows to 3 feet high, but often lower, with leaves opposite, somewhat triangular in shape, and bluntly toothed. At the top of the plant the branches, with their short-stemmed clusters of flowers, form an almost flat top. Disk flowers are bright blue or violet, about 1/4 inch long. There are no ray flowers.
Blue Mistflower attracts bees and butterflies. However, this wildflower spreads quickly and can become a pest.
From the Image Gallery
Plant CharacteristicsDuration: Perennial
Size Notes: 2-3
Size Class: 1-3 ft.
Bloom InformationBloom Color: Blue , Purple
Bloom Time: Jul , Aug , Sep , Oct , Nov
DistributionUSA: AL , AR , DC , DE , FL , GA , IL , IN , KS , KY , LA , MD , MI , MO , MS , NC , NE , NJ , NY , OH , OK , PA , SC , TN , TX , VA , WV
Native Distribution: NJ to s. IL & e. KS, s. to FL & TX
Native Habitat: Wood margins; stream banks; low woods; wet meadows; ditches
Growing ConditionsWater Use: Medium
Light Requirement: Sun , Part Shade
Soil Moisture: Moist
CaCO3 Tolerance: Medium
Soil Description: Moist loam, sand, or clay.
Conditions Comments: Blue mistflower is good as a border plant or as a colonizing groundcover. The fluffy-edged flowers are a magnet for late-season butterflies. It also spreads quickly and can become a pest.
BenefitUse Wildlife: This wildflower attracts bees and butterflies.
Conspicuous Flowers: yes
Attracts: Birds , Butterflies
Nectar Source: yes
Value to Beneficial InsectsSpecial Value to Native Bees
Supports Conservation Biological Control
This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.
PropagationPropagation Material: Seeds
Description: Propagate by root division or by seed. Sow seeds in fall or provide cold stratification. Mist flower can also be propagated by softwood cuttings taken in late spring.
Seed Collection: Seeds can be allowed to dry out before sowing.
Seed Treatment: This species requires or benefits from a three month period of cold moist stratification in the refrigerator.
Commercially Avail: yes
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National Wetland Indicator Status
From the National Suppliers DirectoryAccording to the inventory provided by Associate Suppliers, this plant is available at the following locations:
Edge of the Woods Native Plant Nursery - Orefield, PA
American Native Nursery - Quakertown, PA
Toadshade Wildflower Farm - Frenchtown, NJ
Prairie Nursery - Westfield, WI
Far South Wholesale Nursery - Austin, TX
From the National Organizations DirectoryAccording to the species list provided by Affiliate Organizations, this plant is on display at the following locations:
Lady Bird Johnson Wildflower Center - Austin, TX
Delaware Nature Society - Hockessin, DE
Patsy Glenn Refuge - Wimberley, TX
Stengl Biological Research Station - Smithville, TX
NPSOT - Austin Chapter - Austin, TX
NPSOT - Williamson County Chapter - Georgetown, TX
Mt. Cuba Center - Hockessin, DE
Herbarium Specimen(s)NPSOT 0685 Collected Nov 22, 1993 in Bexar County by Mike Fox
Wildflower Center Seed BankLBJWC-1137 Collected 2007-11-09 in Fort Bend County by Lady Bird Johnson Wildflower Center
BibliographyBibref 1620 - Gardening with Native Plants of the South (Reprint Edition) (2009) Wasowski, S. with A. Wasowski
Bibref 318 - Native Texas Plants: Landscaping Region by Region (2002) Wasowski, S. & A. Wasowski
Bibref 248 - Texas Wildflowers: A Field Guide (1984) Loughmiller, C. & L. Loughmiller
* The Midwestern Native Garden: Native Alternatives to Nonnative Flowers and Plants An Illustrated Guide (2011) Adelman, Charlotte and Schwartz, Bernard L.
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Additional resourcesUSDA: Find Conoclinium coelestinum in USDA Plants
FNA: Find Conoclinium coelestinum in the Flora of North America (if available)
Google: Search Google for Conoclinium coelestinum
MetadataRecord Modified: 2013-09-12
Research By: TWC Staff, GDB