48 GARDENING INDOORS AND UNDER GLASS 
been given, at the beginning of the growing period, 
no further change should be necessary during the 
winter. It will, however, be well, if not imperative, 
to furnish food in the form of liquid manures when 
the soil in the pot has become filled with roots. It 
should be applied from one to three times a week — 
the former being sufficient for a plant showing 
ordinary growth. 
All the animal manures, cow, horse, sheep, hen, 
etc..— are good to use in this way, but cow ma- 
nure is the safest and best. Place three or four 
inches of half-rotted manure in a galvanized iron 
pail, fill with water, and after standing a few hours 
it will be ready for use. The pail can be refilled. 
‘As long as the liquid becomes the color of weak tea 
it will be strong enough to use. Give from a gill 
to a pint at each application to a six- or eight-inch 
pot. The other manures should not be made quite 
so strong. For liquid chemicals see page 19 or mix 
up the following: 5 lbs. nitrate of soda, 3 of nitrate 
of potash and 2 of phosphate of ammonia, and use 
I oz. of the mixture dissolved in five or six gallons 
of water. 
At the beginning of the growing period and at 
frequent intervals during the early growth of plants 
they must be repotted. The operation is described 
on page 40. 
As soon as danger of late frost is over in the 
spring the plants should be got out of the house. It 
