THE ORCHID REVIEW. 87 
and in replacing them in their new pots, pans, or baskets. When 
re-potting has become imperative is either when the plant has actually 
overgrown its pot, or when the compost has become obviously worn out, 
and in a rapidly decomposing condition, through which the air and water 
cannot pass freely. The surface of the compost of such a plant will present 
an unmistakable appearance of what is going on beneath it; it will not 
only look dead and heavy, but growth of a nasty green mossy or slimy 
appearance will take place, and the plant will consequently look more and 
more miserable and forlorn, and unless repotted again into good fresh 
compost will undoubtedly go back. 
It cannot be said with certainty how long a plant will safely stand after 
being repotted, as so much depends upon the quality of the new compost, 
the manner in which the work is performed, and in the amount of water 
afterwards given. Still it should reasonably .be expected to last without 
being again disturbed from one to three years. Probably many of the 
Lelias, Cattleyas, | Cypripediums, Epidendrums, Odontoglossums, 
Oncidiums, and such like kinds may go three years and even longer. 
Whilst many of the Dendrobiums, together with Mormodes, Castasetums, 
Calanthes, Thunias, and a few others are better if repotted at less intervals, 
ranging from one to two years, or occasionally three. 
Th right time for an Orchid to be repotted varies according to the stage 
of its growth. It should almost invariably be done just as the plant is 
about to start into fresh growth, or in other words when the new growth is 
seen bursting forth from the base of the last formed psendobulb. The 
Toots are then just commencing to become active, and will soon become 
re-established in the new compost. Many are the plants that will shortly 
Present such new growth. For instance, we may now look through our 
Cool house, and find among others many of the Odontoglossum crispum, 
O. triumphans, O. luteopurpureum, and O. nebulosum in such a condition; 
also various species of the cool growing Oncidiums, and various others. In 
the Cattleya house no less an important and useful species than C. Triane 
will be ripe for re-potting, also C. Gaskelliana, Warscewiczii, some few 
Lelias, and others, while the intermediate growing kinds in this condition 
are too numerous to mention. Sufficient, however, have been mentioned 
te illustrate my meaning. This rule for re-potting holds good, I believe, 
Without any exception if happening at this or any early period of the 
Stowing season, even though the plants still have to bloom, such as the 
Anguloas and the Lycastes for instance. These, as we know, start their 
new growths and flower buds simultaneously, and are thus too far advanced 
© "e-pot after the flowers are past. And again, should any of the 
; Cattleyas Start to root profusely or to make new growth before they bloom, 
oe : we. Mossiz and C. Mendelii will sometimes do, they are really better if 
