194 GREEN-HOUSE — OF ORANGES, ETC. [March. 
commonly cold weather : at such times he attentive to ward 
off danger hy applying artificial heat. 
OF WATERING. 
Look over the pots and tubs at least every alternate day, 
to see where water is wanted. In watering, too much 
caution cannot he used, especially during winter and the 
commencement of spring. It was observed last month what 
would be the effect of too much water. It may be remarked, 
that if the exterior of the pot is very damp, the soil inside is 
too wet, and in that state, is uncongenial to vegetation, which 
now begins to start, and ought, by all possible means, to be 
encouraged, which we do very effectually with Guano water 
once a-week, for a few weeks, using about one pound to five 
gallons of water, allowing it to stand twenty-four hours, and 
stir it up before using. If you are troubled with worms in 
the pots, give one or two waterings with lime-water, one 
pound of lime in four gallons of water; allow it to stand 
twelve hours to settle, pour the clear water into another 
vessel, and use it only. People may be frequently observed 
watering all plants indiscriminately, not taking the trouble 
to look into or feel the state of the soil in the pots or tubs, 
and thus, by going over them three or four times in this 
manner, will be sufficient to put the plants in such a state 
that they will not be recruited for some months. Hence the 
reason of so many sickly plants. 
Camellias, where there are collections, will continue to 
flower. Treat them according to the directions given last 
month. 
OF ORANGES, LEMONS, ETC. 
Be sure they are not too wet, as too much humidity as 
well as aridity causes their foliage to have a yellow appear- 
ance, with this difference, that in the former case the foliage 
is the same to the touch as when green ; but in the latter, it 
is soft and dry. We have observed trees in tubs and half 
barrels, with holes all round their sides. This is a ludicrous 
idea, having the appearance of keeping the water from reach- 
