ROCK GARDENING FOR AMATEURS 



light and graceful panicles during the early summer 

 months. It is a native of Southern Europe, and, like 

 S. catalaunica, grows well in sunny positions, planted 

 in limy soil. S. cochlearis var. minor is a diminutive 

 form well worth a place in the smallest garden. 



5. Cotyledon. This plant is found on most of the 

 mountain ranges of Western Europe, from the Pyrenees 

 to Lapland. It is one of the most ornamental of all. 

 It is easily distinguished by its rosettes of broad leaves, 

 and tall stems bearing a profusion of white flowers. 

 These vary a good deal in size ; the flower stems of some 

 forms reach a height of three feet or more, and rise 

 from rosettes over twelve inches in diameter. The 

 largest form is known as S. Cotyledon var. icelandica ; 

 this assumes large proportions in favourable situa- 

 tions. One of the smallest is S. C. var. pyrenaica. S. 

 Cotyledon and its varieties are easy to propagate. 

 Numerous side shoots develop, and these, if taken off 

 and potted up singly, in sandy soil in July, soon root, 

 and make large rosettes. They need to be kept in half- 

 shade for a few weeks. In order to obtain large speci- 

 mens it is necessary to remove all side shoots from rosettes 

 of leaves that show flower. 



S. Hostii is a free-growing plant, from Central Europe, 

 with rosettes of strap-shaped leaves and somewhat flat- 

 topped panicles of white flowers spotted with pink. The 

 pink spots are more numerous in the variety known as 

 S. Macnabiana. 



5. lingulata. This and its variety lantoscana may be 



