Grown for their interesting fleshy leaves, and in some cases their vivid flowers, kalanchoes are a wide range of colourful succulents. Try 'Flapjack' in pots or massed in garden beds. Grow in free-draining soil. Foliage colour best in full sun. Zones: 4, 5, 6, 7, 8, frost free in 3, less arid areas in 1.