Best of the bunch
The saxifrage (or saxifraga) is the low-growing stalwart of rock gardens and scree beds in late spring, when a mass of delicate star or saucer-shaped flowers in shades from white to rose and indigo appear above mounds of ground-hugging foliage.
There are more than 400 species, including evergreen, semievergreen and deciduous perennials and biennials.
As well as being grown in rock gardens, they are also grown in alpine troughs or used to soften walls and paving.
Most prefer moist, well-drained soil in sun or partial shade.
Good types include Saxifraga Apple Blossom, a pink type which is great to grow in crevices and borders, and Tumbling Waters, a white variety.