178 THE ORCHID REVIEW. 
CALENDAR OF OPERATIONS FOR JUNE. 
By H. A. BURBERRY, Orchid Specialist, King’s Heath, Birmingham. 
THE temperatures and general management of the various houses advised 
in last month’s Calendar should be continued during the present month, and 
the details should be well attended to, as they are most important, in order 
that steady growth should be maintained, 
The Cattleya house has been extremely gay of late, and during the 
present month there will still continue to be a brilliant show. Leelias 
purpurata and tenebrosa, Cattleyas Mossi# and Mendelii, Miltonia 
vexillaria and Odontoglossum citrosmum, have all largely contributed to the 
display with their showy flowers. All of them start to grow away immedi- 
ately the blooming period is over, and no time should therefore be lost 
before the necessary re-potting and top-dressing is completed, so that they 
may at once make use of their first and best roots. I have in previous 
Calendars fully described the methods of re-potting, and advised that it 
should not be done too frequently, simply for the sake of doing it whether 
wanted or not, so that it is now only necessary to call attention to two of 
them particularly. 
The first is Miltonia vexillaria, which, as I have before said, may either 
be re-potted during the first or second month of the year, or left until 
blooming is past, whichever way is found in practice to succeed the best. I 
find it is best not to leave them longer than two years without turning them 
right out and supplying wholly new materials, which should consist of 
equal portions of peat and moss. At whatever season of the year re-potting 
takes place, it is always the safer plan to employ small pots, in accordance : 
with the size of the plants, for too much pot room is frequently the primary 
cause of collapse. They may sometimes have been seen growing luxuriantly 
in very large pots, but that is only when the position and the general 
conditions suit them exactly, and when such is the case one can scarcely 
do wrong with them. If they are grown in the Cattleya house, in smallish 
pots, kept perfectly free from yellow thrip, a good amount of water given 
during summer and a very limited supply during winter, this species will 
generally respond very willingly, and suffer nothing from re-potting. 
The second which I wish to mention is Odontogl2ssum citrosmum, which, 
I am bound to say, takes some little time before it thoroughly recovers from 
a real shaking out. Bearing this in mind, one must be careful to disturb 
the roots as little as possible, and only to re-pot the plants when really 
necessary. I like to grow this species in baskets or pans, using good fibrous 
peat alone, and pressing it in firmly, which keeps the roots in a good, sound 
condition for a long time. If grown in the conditions of the Cattleya house, 
watered pretty freely from now throughout the summer, and kept very dry 
