This section is from the book "Commercial Gardening Vol2", by John Weathers (the Editor). Also available from Amazon: Commercial Gardening, A Practical & Scientific Treatise For Market Gardeners.
A genus of pretty little free-flowering alpines, easily grown in ordinary garden soil, and increased from seeds or cuttings. The kinds mentioned here grow from 6-12 in. high, and flower from April to July, viz.: coridifolium, rose pink; grandiflorum, deep rose; Iberidium, a shrubby spreading species with heads of small white fragrant flowers; persica, rose lilac; pidchellum, rose purple. There are a few annual species, like Buxbaumi and saxatile, which are sometimes grown.