266 TREES AND SHRUBS 



Viburnum. — ^When the plants are well budded the 

 Laurestinus (V. Tinus) will flower throughout the 

 winter in a greenhouse. Of those that are amenable 

 to slight forcing the best are the common Guelder 

 Rose ( V. Opulus sterile), the Chinese V. plicatum, and 

 V. macrocephalum. Treat them in the same way as 

 the Lilac. The Guelder Rose is a delightful shrub 

 under glass, with its wealth of ivory-white balls. 

 It is one of the most interesting of all the things that 

 can be brought into bloom in a greenhouse. Treat 

 the Viburnums in the same way as recommended for 

 the Lilacs. 



Weigela. — Many of the Bush Honeysuckles, as 

 the Weigelas are called, will flower well in a cool 

 house, but they do not last sufficiently long in bloom 

 to make them of great value for this purpose. The 

 best is the dark-coloured Eva Rathke, which grows 

 naturally into a neat bush ; the flowers are of claret 

 colouring. 



Wistaria. — It is only within the past few years 

 that the Wistaria has been used to any extent for 

 flowering in this way, but now it is universally 

 admired. At the exhibitions early in the year it 

 always attracts more attention than any other shrub 

 grown in a greenhouse ; the soft lilac colouring of 

 the flowers is very beautiful against the tender green 

 of the expanding leaves. The best and general way 

 is to grow it as a standard, as the racemes hang 

 down in graceful profusion. W. sinensis is the 

 Wistaria planted so freely against houses and per- 

 golas, and for flowering under glass the variety alba 



