Scientific Name Eupatorium coelestinum Common Name Hardy ageratum

Perennial Flowers Consumer Hort Index - Fact Sheets

Characteristics Season late summer to frost Height 12-36 inches Hardiness USDA Hardiness Zone 6-10 Flower Color blue, violet, white Soil moist, tolerates poor drainage Exposure full sun to partial shade Propagation division in spring North Carolina Regions Piedmont, Coastal Plain Comments Hardy ageratum is a showy native plant which is considered a weed in the coastal plain, growing along roadsides on moist ditch banks. Under cultivation it becomes a choice perennial with 8 weeks of blue flowers. It spreads readily by rhizomes so must be kept under control. Origin Eastern USA, North Carolina

Prepared by: orginally by Alice B. Russell, retired Extension Specialist, NC State University
                     maintained and expanded by Erv Evans, Consumer Horticulturist, NC State University

Images: ©Alice B. Russell and Erv Evans

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