36 TREES AND SHRUBS 



STRACHYURUS. This should be thinned out after 

 flowering. 



STAPHYLEA. 5. pinnata should be kept thinned in 

 late summer ; S. colchica and S. Coulombieri require 

 very little pruning, but if too tall or unshapely 

 should be cut back immediately after flowering. 



STUARTIA ) 



STYRAX } Reqo pruning. 



SILEDA. Cut back occasionally to keep it from 

 getting ragged. 



SYMPHORICARPUS. Keep these well thinned out, 

 which should be done in late summer. 



SYRINGA (Lilac). These should be kept free of 

 suckers, especially the finer-named kinds, which are 

 usually worked on stocks of the Common Lilac. 

 In addition, disbudding may be practised with ad- 

 vantage in the spring, removing the majority of the 

 blind shoots and any flowering or leading shoots that 

 are misplaced or not required. This should be done 

 twice or thrice at intervals of ten days or a fortnight. 



TAMARIX. Cut back in a young state, but when 

 older they should not be pruned at all. 



VACCINIUM. The removal of any old or rough 

 wood is sufficient for these. 



VIBURNUM. All the Viburnums grow thickly, and 

 require an annual thinning. 



VITIS. The methods practised in growing Vines 

 for fruit suits the ornamental species as well. If 

 space is restricted they should be grown on the 

 spur system, and if there is plenty of room then 

 the extension system may be employed. 



