WHAT TO GROW IN ROCK-GARDENS 95 



are propagated by seeds or cuttings, and are benefited by 

 being cut back a little after flowering. Plant November 

 or March. They should not be placed near choice things. 



Good Varieties. 

 /Ethionema 



cordifolium (pink), June-Aug 8 ins. 



grandiflorum (rose), June-Aug. . . 6 ins. 



pulchellum (rose), July-Aug. . . 6 ins. 



Ajuga : There are many better things than this, but 

 as it is an easy plant to grow and also quite pretty I include 

 it. Its fault is the way it has of spreading, so it should 

 be planted away from choice things. It can be planted in 

 November or March, or raised from seeds sown in March 

 or April. 



Good Varieties. 

 Ajuga 



Brookbanki (blue), June. . . . . 8 ins. 



reptans variegata (blue), June. . . 3 ins. 



Alyssum : A well-known rock-plant, easy to grow, 

 succeeds admirably in town gardens, and flowers profusely 

 (especially A. saxatile). It is propagated by seeds or 

 cuttings, planted in November or March, cut back after 

 flowering, and otherwise left to itself. It should be planted 

 so that it can drape the rocks. It may be used along with 

 Arabis and Aubrietia. 



Good Varieties. 

 Alyssum 



alpestre (yellow), June- July . . 3 ins. 



argenteum (yellow), May- July . . . . 10 ins. 



saxatile citrinum (yellow), April- June . . 6 ins. 



saxatile compactum (yellow), April- June 9 ins. 

 Anchusa myosotidiflora : This is a pretty little rock- 

 plant about i ft. high, quite hardy in most districts, with 

 glorious blue flowers. It begins to flower in June, 

 sometimes earlier, and if care is taken, it will bloom more 

 or less continuously till the autumn. 



Androsace : These plants are full of interest to the 

 rock-gardener, and they are not difficult to grow. A fairly 



