Expect mounds of bright yellow blooms on slender stems from June to September with this easy to grow native perennial. Star Tickseed prefers full sun and dry, well-drained soil although they also tolerate high humidity, drought and thin, rocky or sandy soil. Star Tickseed can be short-lived, but they do self-seed easily. Deadhead to extend the bloom season and hard prune if they become rambling or unkept looking. Butterflies love this Tickseed but deer avoid them.