Feverfew brightens up cottage, herb, and cutting gardens, its ferny foliage carpeted with masses of sweet gold-centered daisy flowers. A short-lived perennial is often grown as a summer-blooming annual when started early indoors. Pinch back when seedlings reach about 6" tall to encourage bushiness. Deadhead regularly to avoid excess self-sowing, leaving a few branches to drop seeds and renew your plantings. Feverfew is a traditional medicinal herb, the earthy, pungently spicy foliage used to treat headaches.