‘Yellow’ (‘TNECHY’) Coneflower is a butter yellow compact Echinacea of the Kismet® series from Terra Nova. The horizontal bright yellow petals surround a greenish cone and are held on sturdy short stems. Kismet® 'Yellow' Coneflower blooms heavily from late June through August, and the individual flowers retain their color for several weeks. Deadheading prolongs the bloom period but the seed heads are an important source of winter food for small birds.