Caulophyllum thalictroides, or Blue Cohosh, is a 2-3 foot perennial for moist rich woods. Its beautiful foliage appears in spring turning from purple-green to blue-green. Star-shaped yellow flowers on Blue Cohosh appear in early spring and its deep blue-black berries form in summer.

Light: Part Sun-Shade
Soil moisture: Moist
Height: 2′