Eupatorium coelestinum

Eupatorium coelestinum, commonly known as Blue Mist Flower Or Hardy Ageratum, is a herbaceous perennial valued for its bright blue flowers during fall and summer. It typically matures 1.5–3 feet tall and 1.5–3 feet wide. Grow it in full sun to partial shade in moist, well-drained garden soil. Its native range or documented parentage is North America. The nectar-rich flowers are attractive to butterflies and other pollinators. In the landscape, it works well in border, mass planting, and meadow. Once established, it shows useful tolerance to deer, fire, and wet soil.

Extends color and interest into the part of the season when many gardens start to fade. Brings more movement to the garden by drawing butterflies and other pollinators. Fits naturally into Mid-Atlantic planting palettes and habitat-minded gardens.

Eupatorium coelestinum produces blue flowers and provides cultivar-specific ornamental interest.

Native garden, rain garden, pollinator garden

North America