Hot, dry weather is no match for ‘Tricolor’ sedum. In fact, this rugged groundcover still looks great even when rainfall is scarce. ‘Tricolor’ shows off small green leaves beautifully striped with pink and cream. Plus, in midsummer the 4- to 6-inch-tall plants display short stalks of soft pink bloom. It’s a top pick for rock gardens and containers. Zones 3 to 9