HARDY SHRUBS IN GREENHOUSE 259 



those of a Rhododendron, so that well-budded plants 

 can be lifted in the autumn and potted without 

 risk. They must be brought on gradually in a cool 

 house, and never suffer from want of water. The 

 earliest to bloom is K. glauca, followed by K. 

 augustifolia, while later on there is the largest and 

 best-known species, K. latifolia y the Mountain Laurel 

 of the United States, which has pretty pink flower 

 clusters. 



KERRIA JAPONICA (the Jews' Mallow). The single 

 Kerria is a twiggy bush, with bright yellow flowers, 

 like those of a single Rose, and expand quickly in 

 spring. The ordinary double Kerria is very bright 

 amongst forced shrubs ; they can be potted in autumn 

 or grown permanently in pots. After the flowering 

 season is over the double variety can be spurred 

 back hard to prevent a tall weakly growth. 



LABURNUM. This has long been used for the 

 greenhouse, and very effective it is when well 

 flowered. It is as a rule most successful when in 

 large pots, in the shape of a standard. Prune 

 back moderately after flowering. 



LONICERA (Honeysuckle). As L. fragrantissima 

 flowers naturally out of doors soon after Christmas 

 when the weather is mild, it is evident that no 

 forcing is needed to obtain it at that season, and in 

 a cool greenhouse the little white flowers are remark- 

 able for their delicious perfume. As spring advances 

 the early Dutch may be flowered under glass, while 

 the scarlet Honeysuckle (L. sempervirens minor) is a 

 delightful greenhouse plant, not used so much as it 



