One of the most familiar garden perennials, yet never lacking in appeal. These form low rosettes of fleshy leaves, tiny new plants appearing in a circle around the mother in the middle. Hundreds of varieties exist, in shades green through to bronze, purple and red. This is a medley of many different hybrid forms. Spikes of starry flowers appear in summer, ranging from white through to pink and soft yellow. Although they will grow nearly anywhere, these prefer the sort of well-drained conditions found in a sunny rock garden or wall. Worth trying in any sort of container, even an old shoe! Clumps may be divided at any time.