Ornamental sweet potato vine trails and climbs with vigor, draping baskets and softening fence lines through the warm months. The heart-shaped leaves come in green or purple depending on variety, and they'll keep spreading until cold weather stops them.

Plant in sun to part shade and give it something to climb or cascade from—a trellis, arbor, or hanging basket. Water regularly during heat, and it'll reward you with months of lush, tropical-looking growth.