218 STUDIES IN GARDENING 



in the same situation. It is a very pretty plant. Rocks 

 on the northern slopes may be clothed with Arenaria 

 Balearica, a minute plant, which will cling to them as 

 Ampelopsis Veitchii clings to a wall, and which in 

 early summer is covered with small white flowers. 

 Near it may be grown Linaria hepaticifolia (of Kew), 

 a pretty plant, for which a variety of L. cymbalaria 

 is often sold. Among easy and vigorous plants par- 

 ticularly suited to the north side are Waldstenia tri- 

 foliata and W. fragarioides, the Acaenas, particularly 

 A. microphylla, Margyricarpus setosus, a pretty 

 shrub with white berries, Borago laxiflora (this only 

 for large rock gardens), Saponaria ocymoides alba, 

 and those smaller flowered Tufted Pansies that are 

 called Violettas. These are plants of garden origin, 

 but the best of them are very well suited for the north 

 side of the rock garden. They should be given rich, 

 well-manured soil, and left undisturbed for some 

 years, where their roots can thrust deep under a rock. 

 Then they will endure a good deal of drought and re- 

 main long in flower. When they get straggly they 

 should be cut back. Nearly all the hardy Cyclamens 

 do well on the north side of the rock garden, and do 

 not mind a dry place provided it is not too sunny. 

 Among those which flower in the autumn may be 

 planted some of the smaller Daffodils, such as Nar- 

 cissus minimus, N. triandrus albus, N. cyclamineus, 

 and N. nanus. These will flower just when the Cy- 

 clamens are at rest, and the plants will not interfere 

 with each other. 



