The warm-growing orchids include the popular phalaenopsis, and ideally they should be grown at a minimum winter night temperature of 18C (64F), with a summer day maximum of 32C (90F). However, in indoor conditions, where the atmosphere is naturally drier than in a greenhouse, they seem to do well at temperatures that are closer to those of the intermediate orchids. If you are growing your orchids indoors, you can usually find various positions around the home to suit these different temperature-range plants.
Tropical orchids can be divided into cool-growing, intermediate and warmgrowing types, depending upon where the species originated. Each group has its own temperature requirements in which the plants will grow at their best. Within these three temperature bands there is a considerable variation and some overlap of the requirements of each.
Insufficient light, on the other hand, will create dark green leaves that can become over-extended and limp. The aim should be to give your orchids just enough light to produce a good mid-green, healthy foliage and pseudo bulbs that will develop flower spikes at the right time.
In winter, most orchids, with the exception of the phalaenopsis and paphiopedilums, can take all the light that is available. This will ensure that sufficient ripening of the pseudo bulbs takes place, which is also an important factor in their flowering.
Orchids grown indoors have less light available, and the orchids will only receive this from one direction, so the dangers of giving too much light is not so great a problem. During the winter, it can be a disadvantage if plants are not getting enough light, and it can be difficult to increase this through the window area.
After their winter's rest, orchids commence their new growth in the spring. Repot the plants as soon as this happens and before the new roots start at the base.
Calanthes are deciduous orchids which produce their flower spikes at the end of the growing season, as the plant is about to shed its leaves and rest. The flowers will appear while the plant is leafless.
Summer night-time temperatures should remain at around 13C F) with no electric heating in the achieve the higher temperature required on winter lights, you will need to provide heat for longer than is necessary with the cooler-growing types
Tropical orchids can be divided into cool-growing, intermediate and warmgrowing types, depending upon where the species originated. Each group has its own temperature requirements in which the plants will grow at their best. Within these three temperature bands there is a considerable variation and some overlap of the requirements of each.
Insufficient light, on the other hand, will create dark green leaves that can become over-extended and limp. The aim should be to give your orchids just enough light to produce a good mid-green, healthy foliage and pseudo bulbs that will develop flower spikes at the right time.
In winter, most orchids, with the exception of the phalaenopsis and paphiopedilums, can take all the light that is available. This will ensure that sufficient ripening of the pseudo bulbs takes place, which is also an important factor in their flowering.
Orchids grown indoors have less light available, and the orchids will only receive this from one direction, so the dangers of giving too much light is not so great a problem. During the winter, it can be a disadvantage if plants are not getting enough light, and it can be difficult to increase this through the window area.
After their winter's rest, orchids commence their new growth in the spring. Repot the plants as soon as this happens and before the new roots start at the base.
Calanthes are deciduous orchids which produce their flower spikes at the end of the growing season, as the plant is about to shed its leaves and rest. The flowers will appear while the plant is leafless.
Summer night-time temperatures should remain at around 13C F) with no electric heating in the achieve the higher temperature required on winter lights, you will need to provide heat for longer than is necessary with the cooler-growing types
0 comments:
Post a Comment