Also known as pinks, Dianthus produces dozens of pretty, frilly flowers with ruffled edges. Showy one-inch blooms are often clove-scented in shades of white, pink, or magenta, and also come in stunning bicolors, rising two inches to two feet above a mound of feathery blue-gray foliage. Plants tolerate heat and drought but can thrive in high rainfall and humidity as long as they have well-drained soil.