THE PLANT STOVK. 
I'll 
and free-blooming plants ' are wanted. The 
ultimate size of the pot must be regulated by 
the size and habit of the variety : a plant of 
•globosa would attain to considerable size and 
beauty in an eight-inch pot ; microphylla 
would not require one more than half as large 
to arrive at the same proportionate develop- 
ment. 
Calceolarias, in bloom, require abundance of 
water. Put in some cuttings of the shrubby 
varieties for winter flowering. 
Plants for Winter Flowering. — The treat- 
ment of the Pelargoniums, Salvias, Heliotropes, 
Calceolarias, &c., for winter flowering, must 
be persevered in, as explained at p. 160. 
THE PLANT STOVE. 
Temperature. — Keep up a strong moist 
heat in this house, as the plants will now be 
in a growing condition, and should not be 
submitted to any check from deficiency of heat. 
From 60 degrees to 65 degrees is a good 
medium night temperature ; and the day tem- 
perature may be allowed to vary from 70 de- 
grees to 90 degrees, by sun-heat; this heat will 
be maintained, in a great measure, by the influ- 
ence of the sun, and very little artificial heat 
will be necessary, and this little should be 
given chiefly in the morning ; very little 
indeed is required at night, as the temperature 
will be kept up by the influence of the sun, 
if the house is closed early, and this heat is 
taken advantage of. 
Moisture. — While the growth of the plants 
is going on, a moist atmosphere must be kept 
up : in order to speak with precision as to the 
quantity of moisture the atmosphere should 
hold in suspension, a hygrometer is as neces- 
sary as a thermometer is to indicate the degree 
of heat ; the new hygrometer of Simmons's is 
a simple one, and the best suited for garden- 
ing purposes. In the absence of such a guide 
in common use, it must be sufficient to say, 
that the floors, walls, and pipes, or flues, should 
be sprinkled with water several limes a day ; 
the flues or pipes, too, should be provided with 
flat shallow pans, or troughs, to hold water 
continually ; in addition to tins, the plants 
must themselves be syringed once or twice 
a day, except when they are in flower. The 
evaporation from all these various sources of 
moisture will keep the atmosphere in a tolerably 
d.imp condition, such as will suit the growing 
phints. This condition of the atmosphere, too, 
is just the very means of keeping down those 
pests to plants of tender foliage— red spider, 
ihiip, and similar insect enemies. 
Ventilation. — Eefer to what was said at 
p. 160. Admit air so as to keep the tem- 
perature from rising too high, but admit it 
evenly and regularly over the house, and not 
in large bulk, or in strong currents. 
Watering. — The utmost attention must be. 
paid to keeping the plants regularly and 
evenly watered, while in their growing condi- 
tion. Plants at rest require either a less 
supply, or a total cessation for a time, according 
to their habits : see p. 160. 
Potting may be continued in the case of 
those plants that are required to be grown to 
large size. Permanent ligneous plants seldom 
require more than a good annual shift ; but 
herbaceous, or free growing soft-wooded 
plants, as well as annuals, may be repeatedly 
repotted, if the object is to grow them to 
large size, or to a fine state of development. 
Pruning requires to be attended to in the 
case of stove plants equally as much as with 
green-house plants, already noticed. 
Climbers. — It is just necessary to repeat 
that climbing plants, of all kinds, require con- 
stant attention in pruning and training. 
Dysophilla stellata. — The plants of this 
rare little herbaceous plant, reared in the 
earlier part of the season, must be carefully 
shifted, and submitted to a moderately strong 
moist heat ; and under judicious management 
they will flower towards the latter end of the 
summer. 
Gloriosa. — If potted as directed in the 
early part of last month, or sooner, these will 
require to be moved to larger pots, but it 
must be done very carefully, as- their roots 
are very delicate. 
Nelumbiums, and other aquatic plants, re- 
quire good attention. Change the water fre- 
quently, and give both roots and leaves 
abundance of room; they never do well if 
they are crowded, for,, like most other plants, 
a free and perfect action of the leaves, as the 
organs of nutrition, is essential before a satis- 
factory display of flowers — the organs of re- 
production — can be realized. Many of the 
aquatics, from the large size of their leaves, 
take a good deal of room.. 
Palms. — Syringe these noble plants freely 
and frequently, for they delight in a moist 
atmosphere and a high temperature. When 
any of the plants are now observed to be 
commencing growing, give them larger pots, 
or tubs it' necessary; and if they do not require 
this, let them have a top-dressing of rich soil, 
and during their growth, occasional waterings 
with clear diluted manure water. 
ORCHIDACEOUS HOUSE. 
We can add but little to what is stated at 
p. 162, as regards the temperature and at- 
mospheric condition of. this structure : at the 
present time, and for some months to come, 
the plants ought lo be in a free growing slate, 
and to aid them in their progress, a moist and 
warm atmosphere is indispensable. This struc- 
ture requires very little ventilation indeed; 
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