Draba aizoides

Also known as Alpine Whitlow-grass. This is an evergreen alpine plant that requires a well-drained rock garden, gravel scree or alpine trough for success. It forms a small tuft or hummock of narrow green leaves, bearing upright stems in very early spring that hold clusters of bright-yellow flowers. Plants do not usually divide successfully and are best increased from seeds or cuttings. Performs best in cool summer regions, but is surprisingly hardy. Keep this slow-growing bun-shaped plant away from more vigorous rock garden plants that may smother and kill it. Seems to prefer lime or neutral soils.