60 TREES AND SHRUBS 



growth only that is coloured no very marked colour 

 effect is produced. To obtain a really bright patch 

 of colour it is necessary to plant these Willows in 

 goodly-sized groups and to prune them hard back 

 every spring. By treating them in this way a great 

 cluster of long, wand-like growths is made every 

 year, the bark over the whole of which becomes a 

 bright yellow or red as winter approaches. An 

 effective group is produced by mixing the red and 

 yellow-barked varieties. 



" Another striking Willow is Salix daphnoides. The 

 young bark of this species is covered with a thick 

 glaucous or vivid blue-white < bloom.' 5. acutifolia 

 is similarly distinguished, though not quite so 

 markedly. Different from any of these Willows, 

 too, is the variety of S. triandra, with purplish-brown 

 bark. To bring out fully the ornamental qualities of 

 these Willows they should be treated as advised for 

 Salix vitellina. All these Willows are especially 

 charming near the edge of water. Not only are 

 their moisture-loving propensities satisfied, but their 

 beauty is doubled by reflection in the water. 



" Somewhat similar to the Willows in the character 

 ot their bark, but useful in being adapted for drier 

 situations, are the Cornels (Cornus). The best of the 

 genus in this connexion are Cornus alba and its variety 

 sibirica. They produce bark which for one or two 

 seasons remains a bright red during the time the 

 branches are leafless. A group of Cornus alba, with 

 Chionodoxa Lucilice or Winter Aconite planted thickly 

 beneath, gives a very pleasing bit of colour early in 



