For gardeners who crave color and vibrancy, this plant creates gorgeous clusters of brightly colored flowers that open to one shade and then fade to another. "It is a mounding plant, which makes it good for bedding and hanging baskets and planters," Awot says, adding that this annual loves the heat and is very drought tolerant. "It can also tolerate sea spray so it does well near the beach," she says. Lantana requires well-draining soil and full sun to thrive, but can multiply in the summer heat without much care.