Common names: Wild Ageratum, Hardy Ageratum, Blue Mist Flower
Conoclinium is a hardy, native perennial. It’s blooms are fuzzy clusters of tubular disc flowers in shades of blue to sometimes purple. The blooms are similar to the annual ageratum found in garden centers and landscapes all over the country. The plants are tall and spread via a rhizome root system. These rhizomes can, in the right conditions, spread quite a lot to form a colony of plants.
Conoclinium coelestinum (previously call Eupatorium coelestinum) is native to the East and Southeast US states. It does best in moist, wooded areas where it can spread out via the rhizome roots. It can take over other plants under these conditions. It is not recommended for smaller planting areas. Mistflower can be thinned in early spring to control its spread as needed.
The Hardy Ageratum blooms from mid-summer to mid-fall. It is a showy flower that can bloom for up to eight weeks. It provides a great source of pollen to pollinating insects. The plants contain alkaloids that some male butterflies need to produce pheromones. These same alkaloids make the plants bitter and unappealing to deer and other foraging animals.
Plant in full sun to part shade. Full sun locations will need adequate irrigation. Conoclinium grows 12-36″ tall and 24″ wide.
Conoclinium is available in our Native/Nativar Perennial Quart size category.