LIGHT, HEAT AND VENTILATION 



AMOUNT OF LIGHT NECESSARY 

 The proper amount of light for a plant is that 

 which gives it its best development. This 

 amount is not the same for all plants, but varies 

 v^rith different kinds. Plants, such as the ferns, 

 v^^hich in their wild state are found growing on 

 the forest floor where they are protected from 

 the hot sun by the over-arching branches of the 

 trees, naturally require less sunshine than those 

 whose home is in the open meadow. With this 

 fact in mind, it is evident that the requirements 

 of the plants to be used in a window garden 

 should be studied that they may be given the 

 proper light conditions. 



The effect of a deficiency of light is very no- 

 ticeable in plants that have been stored in the 

 cellar over winter. When the cellar is warm 

 they often begin to grow with the result that the 

 stems are long, thin and soft and the leaves 

 are small, yellow, and with long leaf-stalks. 



SELECTION GOVERNED BY LIGHT 



In securing plants for the window it is well to 

 keep these points in mind and to select only 



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