WINDOW GARDENING 



Fig. 15. Same plant as in Fig. 14, si.x weeks kilcr, after four 

 applications of clicniical fertilizer 



Chemical fertilizers may be used cither in 

 the potting soil or applied in a liquid form. 

 Where used in a liquid form it is especially 

 valuable for plants which require additional 

 plant-food but which one does not care to 

 shift so as to give them new soil. 



Chemical fertilizers or plant-foods for house 

 plants may be secured from dealers put up in 



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