2o6 THE BOOK OF GARDENING. 



are not alone in this respect, however, and if the precaution 

 is taken to plant these and similar subjects in beds that are 

 intended for sub-tropical and carpet-bedding plants (which are 

 generally made up after the ordinary summer-bedders), the difficulty 

 will be to a certain degree overcome, as the plants will have 

 an extra week or two in which to display their brilliant colours. 



Candytuft. — See Iberis. 



Daisies. — The double varieties are indispensable for spring 

 gardening. Several named varieties, with pink, red, and white 

 flowers are in existence. If seed is sown in April, the plants 

 will flower during the summer, and the best of these should be 

 selected for spring bedding. 



Erysimums.— Described under "Hardy Annuals." 



Iberis. — The Candytufts are charming spring-flowering plants, 

 producing an abundance of whitish flowers, which remain long 



Fig. 108. — Iberis sempervirens. 



in beauty. I, sempervirens (Fig. 108) is the Evergreen Candytuft; 

 it is of branching habit, grows gin. high, and produces pure 

 white flowers. The variety Garrexiana also has large handsome 

 heads of pure white flowers. I. gibraltarica has large white 



