Blue Mistflower
Conoclinium coelestinum
Also listed as Eupatorium coelestinum, Conoclinium flaccidum
Also known as Blue Boneset, Mistflower, Perennial Ageratum
Climate Match for your location
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A native perennial with delicate, tiny blue or lavender flowers that bloom in late summer and fall, attracting butterflies and other pollinators. It forms a bushy mound and thrives in part shade with moderate moisture.
Why grow it
Blue mistflower offers reliable late-season color when many other perennials have faded, making it valuable for extending pollinator forage into fall. Compared to other asters and late bloomers, it tolerates part shade better than most, giving gardeners options for woodland edges and understory plantings. Its modest size (typically 2-3 feet) and non-aggressive growth habit make it easier to integrate into mixed plantings than taller or more spreading species.
Watch out for
In consistently moist or poorly drained soil, powdery mildew and root rot can develop, so ensure adequate air circulation and allow soil to dry somewhat between waterings. The plant spreads slowly by rhizomes and can gradually expand its footprint over several seasons, requiring occasional division to maintain boundaries in smaller gardens.
Overview
- Form
- Growth Rate
- Size
- Dormancy
- Family
- Asteraceae
Native to the United States
Native Range
Southeastern United States
Native to: Alabama, Arkansas, Delaware, Florida, Georgia, Illinois, Indiana, Kansas, Kentucky, Louisiana, Maryland, Michigan, Missouri, Mississippi, North Carolina, Nebraska, New Jersey, New York, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, West Virginia
Seasonality
Bloom Season
Season of Interest
Herb
Soft non-woody plants of the field layer.
Succession Role
Tolerances & Soil
Flood Tolerance
pH Range
Soil Texture
Establishment & Care
- Establishment
- Maintenance
- Propagation
A native perennial with delicate, tiny blue or lavender flowers that bloom in late summer and fall, attracting butterflies and other pollinators. It forms a bushy mound and thrives in part shade with moderate moisture.
Climate Match for your location
See how well Blue Mistflower grows in your area.
Enter your ZIP code and we'll show you how this plant fits your local climate.
Why grow it
Blue mistflower offers reliable late-season color when many other perennials have faded, making it valuable for extending pollinator forage into fall. Compared to other asters and late bloomers, it tolerates part shade better than most, giving gardeners options for woodland edges and understory plantings. Its modest size (typically 2-3 feet) and non-aggressive growth habit make it easier to integrate into mixed plantings than taller or more spreading species.
Watch out for
In consistently moist or poorly drained soil, powdery mildew and root rot can develop, so ensure adequate air circulation and allow soil to dry somewhat between waterings. The plant spreads slowly by rhizomes and can gradually expand its footprint over several seasons, requiring occasional division to maintain boundaries in smaller gardens.
Overview
- Form
- Growth Rate
- Size
- Dormancy
- Family
- Asteraceae
Native to the United States
Native Range
Southeastern United States
Native to: Alabama, Arkansas, Delaware, Florida, Georgia, Illinois, Indiana, Kansas, Kentucky, Louisiana, Maryland, Michigan, Missouri, Mississippi, North Carolina, Nebraska, New Jersey, New York, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, West Virginia
Seasonality
Bloom Season
Season of Interest
Herb
Soft non-woody plants of the field layer.
Succession Role
Tolerances & Soil
Flood Tolerance
pH Range
Soil Texture
Establishment & Care
- Establishment
- Maintenance
- Propagation
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