WINDOW GARDENING 



given ofif by the sand aids in keeping the atmos- 

 phere moist. 



SYRINGING 



Where practical it is well to syringe all plants 

 except those having heavy coverings of trich- 

 omes (hairs) on the surface of the leaves. 

 Plants with a heavy covering of trichomes 

 should not be syringed but watered by filling 

 the pot as described in a previous paragraph. 



Syringing aids in keeping the foliage clean 

 and the stomata, or breathing pores, open, — 

 conditions that are essential if the leaves perform 

 their functions. It also serves to prevent the 

 attacks of most insects and is an efficient remedy 

 where the plants are already infested. 



Plants set on a tray of sand may be sprayed 

 to a limited extent, but if the work is to be 

 thoroughly done they should be removed to a 

 sink or bath-tub. Here they may be sprayed 

 either with a sprinkling can or with the spray 

 from the bath-tub. Too great a head of water 

 injures and breaks the foliage. 



On a warm day the plants may be removed to 

 46 



