Blue Cohosh is a wonderful, delicate, spring flowering woodland native perennial. It is somewhat under appreciated because the flowers aren't particularly showy. It does have other note worthy attributes that make it an excellent addition to any shady, mesic site.
Blue Cohosh is quite tall for early flowering ephemerals, reaching heights of 3 feet in moister sites. It stands upright and remains sturdy throughout the summer months. For this reason, it works well massed in a woodland garden and the texture of the foliage contrasts nicely with ferns and later flowering woodland species.
I have had some success propagating Blue Cohosh, the hard seed coat definitely needs to be scarified before planting. Young seedlings take a while to establish.
Blue Cohosh is native to eastern North America, see map below for range.
|Kartesz, J.T., The Biota of North America Program (BONAP).
2011. North American Plant Atlas. Chapel Hill, N.C.