P. Sagina glabra aurea is a useful plant for crevices in paving or rockeries. It is of creeping habit with bright yellow. Light, well-drained soil is desirable. Increase by division in spring. Sagina procumbens is the pearlwort, sometimes a pernicious lawn weed. It can be eradicated by means of a 2, 4, 5 T selective weedkiller which should be used on a dry, warm day. Grass can be sown immediately on the bare patches appearing after the removal of dead weeds. Note that action is relatively slow and full results are not usually apparent for several weeks.