Cockscomb, is an annual plant and easy to grow. Woolflower can grow to 24 inches (60 cm) tall with wavy crests of fused flower stalks.  Celosia cristata produce oval shaped leaves. Celosia cristata blooms throughout summer and into autumn. Cockscomb attracts butterflies and birds to your garden. Woolflower is perfect for beds and borders. Cockscomb thrive in well-drained soil in full sun. Celosia cristata is a common garden plant and can be dried and used in a floral arrangement.