92 YAKD AND GARDEN 



in which they are planted should be well 

 drained, and each year should be enriched by a 

 top dressing of cow manure. They are used in 

 many places to cover walls, mounds, trellises, 

 arbors or porches. Unfortunately, clematises 

 are subject to a disease which often results fa- 

 tally. When planted close to buildings where 

 the ground does not freeze to a great depth this 

 disease is responsible for many disappoint- 

 ments. It is due to a parasite which it is be- 

 lieved is killed by hard freezing; indeed, no 

 other remedy so far as is known exists. The 

 vines should in all cases be fastened securely 

 to the trellises upon which they are supported 

 to prevent their being whipped about by the 

 winds ; training the vines upon strings or simi- 

 lar insecure devices is therefore to be avoided. 

 Clematis ftammula or sweet clematis blooms 

 early in July; Clematis paniculata is a strong, 

 vigorous grower and in late summer produces 

 sheets of pure white flowers of the most pleas- 

 ing fragrance. Both are perfectly hardy. The 

 finest hybrids, including Clematis Jackmani and 

 its varieties, are widely used and much admired. 

 The plants bear large, intense violet-purple 

 flowers remarkable for richness of color; they 

 are free in growth and abundant and successive 



