PLANNING THE GARDEN 39 



same boxes may be kept inside the windows in cold weather and 

 outside when danger of frost is over. 



Plans should be made to have suitable plants for the 

 several purposes desired at the different seasons of the school 

 year. These window boxes may furnish material to illustrate 

 many lessons in nature study, such as leaf study, and relation 

 of plants to light, seed germination, bulb growth, use of 

 tendrils and other climbing devices. Many experiments may 

 be carried on in the window boxes. The growth here will 

 furnish the best of material for drawing exercises. A good 



Fia. 19. — In cities, where children live in apartments, the roof is often utilized for 

 gardening. (U. S. D. A.) 



field for observation is constantly before the eyes of the 

 children. 



Roof Gardens. — Necessity sometimes demands the use of 

 roof gardens when other places are not available. Figure 19 

 shows children at garden work on a roof. Flat boxes or trays 

 are used to hold the soil. These may be taken to the school 

 room for the special lessons saiggested in the preceding 

 paragraph. 



Principles of Planning. — 1. Plan early — any time during 

 the fall, winter or early spring. 



2. Do not delay the planning until the date is too late to 

 show some results while school is still in session. 



