Exposure
Height
Soil Type
HARDY AGERATUM
Eupatorium coelestinum
Syn. Conoclinium coelestinum. Blue flowers – soft and showy. August – October. 2 – 3′ tall. Full sun – light shade. Moist soil tolerant. Deer resistant. Attracts butterflies. Good cut flower. Fast spreading. An old garden favorite! NE U.S. native species. Zone 5.