174 GARDENING INDOORS AND UNDER GLASS 
cover, or where it will not freeze, to last you during 
the winter and early spring. Store some of it in 
old barrels, or in boxes under the greenhouse bench, 
if there is not a more convenient place. For very 
small pots, run it through a half-inch sieve. For 
the larger sizes, three inches and up, this will not 
be necessary — just be sure the ingredients are 
well mixed. 
Proper temperature is more likely to be the be- 
ginner’s stumbling block than any other one thing. 
Different plants, of course, require different treat- 
ment in this respect; and just as your corn and 
beans will not come up if planted too early in the 
spring, or carrot or pansy seed in the heat of July, 
so the temperature in which a coleus will thrive 
would be fatal to the success of verbenas or lettuce 
under glass. It will often pay, where a variety 
of things are to be grown in the small greenhouse, 
to have a glass partition separating it into two sec- 
tions, one of which may be kept, either by additional 
piping or less ventilation, several degrees warmer 
than the other. So, while a general collection of 
many plants can be grown successfully in the same 
temperature, it is foolish to try everything. Only 
actual experiment can show the operator just what 
he can and cannot do with his small house. Even 
where no glass partition is used, there will probably 
be some variation in temperature in different parts 
of the house, and this condition may be turned to 
