Echinacea Sturdy, upright plants produce large daisy-like flowers, each with purple petals and a yellow-gold center or cone. Flowers are produced all summer into fall, even in the hottestweather, and are great for attracting butterflies. Excellent cut flowers. Cones dry perfectly for permanent arrangements. Plant in well-drained soil. Full sun. Perennial. Plant grows 30-36/75-90cm.