82 THE PARLOR GARDENER. 



enough, to keep the graft firmly in its place. Em- 

 ploy for this purpose untwisted woollen thread, 

 which, in case you have drawn it somewhat too 

 tight, will, from its elasticity, accommodate itself 

 to what the sap requires, and prevent strangling. 



Applications of the above Method of Grafting. 

 All graftings of this sort that can be made 

 on other shrubs with persistent leaves, besides 

 orange trees, and especially upon daphnes and 

 myrtles, will prove completely successful, pro- 

 vided that at the time you graft them these shrubs 

 are in full sap that is, that their vegetation is 

 in full activity. Strictly speaking, in ornamental 

 shrubs with persistent leaves, the sap is never 

 completely stationary, as it is in winter with 

 those that lose their leaves. They have, how- 

 ever, a half repose in winter ; after which their 

 sap begins to flow again with renewed energy. 

 This is the most favorable time for grafting them. 



Grafting a la Pontoise. 



As to the orange, its vital principle is so very 

 active that you can, without fear, trust a graft 



