This section is from the book "The Gardener V3", by William Thomson. Also available from Amazon: The New Organic Grower: A Master's Manual of Tools and Techniques for the Home and Market Gardener.
Stonecrops (Sedums) offer numerous green and glaucous species which are attractive during the winter, as they also are in the summer months. Amongst the best in colour and habit are - S. album, which mats and clothes the surface of the ground with its numerous stems, thickly set with bright brownish-green leaves. The flowers are white, supported on stems about six inches high, forming dense masses about June and July. S. annlicum forms tufts of lively-green, dwarf, and mat-like flowers - white, often tinged with pink. S. rupestre, having larger leaves and a more robust habit than either of the foregoing, is yet very dwarf and compact, - the leaves a glaucous tint, which is very pleasing. The flowers are bright yellow, and appear in July and August in terminal clusters. S. sexangulare is a deep, slightly rufous-green in tint, and is closely matting in habit. The flowers are yellow, appearing in early summer. S. spurium is quite distinct from any of the preceding, particularly in regard to the form of its leaves, which are flat and roundish, or wedge-shaped and toothed. It forms flat tufts. The colour is bright-green, and somewhat glaucous.
The flowers are rosy-purple, borne on decumbent stems a few inches high.
The flowers of these may be objectionable to many, and those of some of the species are not worth being permitted to develop themselves on the ground of any very striking beauty they possess. But that objection applies equally to certain others of the numerous bedding-plants which are in use with variegated or glaucous leaves. The flowers can be cut away, and the foliage effect will be enchanced thereby.