April 23, 1887. 
THE GABDENING WOBLD. 
537 
ROSE CULTURE UNDER GLASS. 
(Concludedfrom p. 519.) 
Potting. —Before carrying out this operation, the 
condition of the roots for moisture should be ascer¬ 
tained, as they must not be too wet or too dry. Potting 
is much easier done with plants in this condition, the 
ball being less liable to be broken. The pots should 
be clean and well drained, and a handful of the 
roughest portion of the compost should be placed over 
the crocks to keep the water passage clear. The com¬ 
post should be made firm by means of a potting stick, 
and the soil used should be as rough as the size of the 
shift will allow. 
As soon as the cuttings are struck they will require 
a shift into 3£-in. pots, and grown on in heat till 
midsummer, when they may be transferred to their 
Watering. —Newly-potted plants require watering 
very carefully until the roots commence activity, or 
have taken to the new compost—the fixed rule being 
to keep all growing plants just on the moist side. 
Discretion must be used, for the weather and the 
position of plants have to be considered. Plants that 
have filled their flowering pots with roots should be 
supplied with liquid manure, that from the cowshed 
being preferred ; but it must be diluted with three 
times its volume of water, or, failing this, patent 
manures can be sprinkled on the surface of the soil at 
intervals of three weeks or a month. A small tea¬ 
spoonful to a 9-in. pot is ample. Liquid manure may 
be applied every alternate watering. Clay’s or 
Standen’s Fertiliser are both good. Others may be 
equally good, and each individual cultivator would do 
chance of them becoming thoroughly ripened, which 
is of the utmost importance in the production of 
abundance of blooms. Instead of the trellis I advise 
Tea varieties to be planted, 3J ft. apart, and trained to 
wires run lengthway along the bed. The young 
growths should be trained upright. By this method 
the plants will be exposed to the full benefit of the 
sun, and thus have every opportunity of thoroughly 
maturing their wood. The lower buds are preserved, 
and when the shoots are trained horizontally during 
the season of rest, the majority of them when started 
will break into growth and flower. Another ad¬ 
vantage over the V-shaped trellis is that the plants 
can be got at on all sides with the syringe, which 
considerably reduces the danger of the plants being 
infested with insects. 
Horse-Chestnut Tree at Pinkie House. 
flowering pots. A suitable place for growing them is 
the lightest end of a vinery or Peach house, as near the 
glass as possible. The heat and moisture maintained 
in such structures is just what young growing Roses 
need, and under ordinary circumstances they will 
require potting at intervals of about six or seven weeks, 
that is into 5-in. pots about the second week in April, 
and their final shift about the beginning of June. 
During the following month plants that have been 
forced should be examined, and potting attended to if 
they need it. With these, remove as much of the old 
compost as can be done without injuring the fibrous 
roots, and return them to the same or a larger size as 
the case may be. Plants that are well rooted, and in 
7-in. or 8-in. pots may have a slight shift; those in 
pots, 9 ins. or 10 ins. in diameter, should have the ball 
reduced by one third, and then be replaced in the 
same size pot. 
well to test Several of these manures, using the one 
that acts most beneficially, for some are better than 
others on certain soils. 
Draining. —Plants growing bush-shape in pots need 
scarcely any attention, except where a shoot gets top- 
heavy or several growths are made. These should be 
staked apart to admit of light and air. The plants in 
pots trained to wires under the rafters should be con¬ 
fined to the space allotted them, or they will exclude 
valuable light from those below. As much young 
growth as possible, without crowding, should be en¬ 
couraged, and one or two allowed to run to the top of 
the house. 
For the centre bed of the Rose house the general 
method of training practised is that over an inverted 
V-shaped trellis, but this system has many objections. 
Unless the growths are kept neatly tied in they become 
unsightly, and where tied in to look neat there is less 
Pruning. —It must not be assumed that I should 
neglect the hybrid perpetuals, and grow nothing else 
but Tea varieties. They are well worthy of a place, 
but will not bear too early forcing. When brought 
into bloom about the beginning of March they are very 
welcome. The colour is much more decided and 
stronger than the majority of Teas, which gives tone to 
an arrangement of plants in bloom, or for associating 
with the more delicate Teas in a cut state. In pruning 
hybrid perpetuals differ from Tea Roses, as they should 
be cut back when at rest to four or six eyes. All weak 
and useless wood should be entirely removed to prevent 
overcrowding. 
Tea varieties should be pruned after flowering, cutting 
back all weak growths, whilst strong and robust ones 
should only have the unripened ends removed. Those 
grown in pots are almost wholly dependent on the 
strong shoots thrown out from the base. These growths, 
