Cornflower Yellow Globe Centaurea Macrocephala is a hardy perennial native to Europe. Yellow Globe Cornflower seeds are easy to germinate. Also known as Armenian Basket Flower, Giant Knapweed, and Bighead Knapweed, this rugged perennial Cornflower forms tall clumps of coarse, light-green leaves and produces fluffy, bright-yellow, thistle-like flowers on sturdy tall stems. Bighead Knapweed blooms all summer long and the flowers are long-lasting and attractive to butterflies and hummingbirds.
