114 



House & Garden's 



FOR THE 

 F LOWE RS 

 THAT GROW 

 IN HEAT 





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The small greenhouse can 

 often be biiilt-on if its archi- 

 tectural treatment conjorms 

 Ti'ith that oj the du'elling. 

 In such cases it is heated by 

 an extension of the regular 

 house system 



Cold-frames derive their stim- 

 ulating warmth from the 

 sun's rays. Young plants 

 started in the house are 

 moved to them for "harden- 

 ing off" preparatory to setting 

 in the open garden 



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A simple type of 

 lean-to greenhouse, 

 sko-cving the proper 

 type of ventilator, 

 for best results, 

 the lean-to should 

 be heated at night 

 and on cold, cloudy 

 days 



The lean-to above is 

 built against a con- 

 crete wall. It is 

 partly sunken and 

 faces the south, to 

 catch and hold the 

 maximum amount of 

 sun warmth 



.i regular greenhouse, 



even though small, 

 ran be adapted to 

 •growing any kind of 

 hothouse plant. This 

 is a "unit" house and 

 can be added to if 

 more space is desired 



