The exquisite symmetry of the star-shaped blooms of saxifrages has captivated gardeners for centuries. Close observation of their fine markings, artful color combinations, and graceful presence makes it eminently clear why they attract such an enthusiastic following. Many saxifrages come from mountain habitats that make them well-suited to rock gardens, troughs, and containers, but the diverse genus includes a huge range of garden worthy plants that...