The vegetative reproduction
The very productive way of increasing the population with cuttings in herbaceous plants does not apply to orchids. Almost the only thing to consider is the division of larger pieces when transplanting. See the “Transplanting” section for details; they are briefly repeated. The sympodial growing orchids are left with one division 3-5 Bulbs including the leading instinct. Any remaining bulbs are replanted as rear or rear bulbs. They regenerate over the course of 2-3 Years to flowering plants, if reserve eyes are or were available at all. The range of forms of Dendrobium phalaenopsis and its hybrids can be propagated vegetatively a little more extensively, by the back bulges in 10-15 cm long pieces are cut and these are placed in bowls with sphagnum. With high heat and sufficient moisture, the reserve eyes sprout and give rise to independent young plants in a relatively short time after separation.
Paphiopedilum require special care when dividing. Larger specimens usually disintegrate into several pieces by themselves, when they are taken out of the pot for transplanting. Medium-sized or weaker plants must never be divided too vigorously, something like that, that they are torn apart into individual shoots. This can u. U. lead to total losses. It is better to leave the plants undivided until the next transplant. Monopodial orchids are even more difficult to propagate vegetatively; only older plants are suitable for this. If this is something like 20 cm Höhe über dem Pflanzstoff genügend Luftwurzeln bilden, the upper, perfectly leafy piece can be set down with a smooth cut and replanted. The remaining lower part sprouts again after a few months; the shoots become stronger in the course of 2-3 Years to bloom. This type of propagation is possible with Vanda, Renanthera, Aerides, Angraecum and similar growing genera. However, extreme caution is required with Phalaenopsis; Only very old pieces can be separated in this way and then result in a satisfactory growth for both parts.