They grow in almost any well-drained soil, including limestone, and prefer sunny position. Propagation is by seeds which do not germinate until the second year and ought to be stratified and sown the second spring, and by cuttings of mature and half-ripened wood; also sometimes increased by layers and by root-cuttings; varieties and rarer kinds can be grafted on seedlings of vigorous-growing species. | They grow in almost any well-drained soil, including limestone, and prefer sunny position. Propagation is by seeds which do not germinate until the second year and ought to be stratified and sown the second spring, and by cuttings of mature and half-ripened wood; also sometimes increased by layers and by root-cuttings; varieties and rarer kinds can be grafted on seedlings of vigorous-growing species. |