Eupatorium coelestinum – “Blue Hardy Ageratum”

Botanical Name: Eupatorium coelestinum

Common Name: “Blue Hardy Ageratum”


Height: 3 to 3.5 Feet

Spread: 2 Feet

Light: Full sun to partial shade

Bloom: Sep-Oct


Small, fluffy, sky-blue flowers begin opening in early-autumn clustering in broad, flat, flower heads. Plants may be cut back early in the season to control height. This native perennial spreads freely from underground stems and seeds. Provides beautiful late-season color and wonderful cut flowers. (Synonym: Conoclinium coelestinum)

Photo gallery of Eupatorium coelestinum: