How orchids survive the winter
Provide you with a comprehensive introduction to the knowledge of orchids, a member of the Orchidaceae family, on how orchids survive the winter. Let's follow the editor to see the specific content!
Orchids refer to Cymbidium, Huai orchid, Jian orchid, Mo orchid, and Han orchid, etc. In winter, when the temperature is relatively low, reducing the amount of water for orchids can increase the concentration of cell sap, which is conducive to the formation of flower buds. Therefore, it is sufficient to maintain a certain humidity in the potting soil. For orchids with flower buds, it is especially important to avoid excessively dry or wet potting soil, as it may affect flowering. The watering time should be at noon when it is warm. Orchids usually do not suffer from frost damage when the temperature is above 0℃.
I. By region
(1) In the north, orchids need to spend the winter in a greenhouse from the end of September to mid-to-late April of the following year, but ventilation must be maintained to prevent stuffiness and heat.
(2) In the Yangtze River Valley, move orchids to a sunny and wind-protected house in winter, and when it is snowy and severely cold, move them into the house, or build a plastic film shed to spend the winter.
(3) In the south, orchids do not need to be moved into the house. By reasonably controlling the temperature in winter, you can ensure that orchids bloom normally and promote their nutritional growth.
II. By variety
(1) For Cymbidium and Huai orchid, if the indoor temperature is around 10℃, the formed flower buds will wither under the soil surface or the flower stems will not elongate, affecting normal flowering. If provided with low temperature, the flower buds will be plump and bloom beautifully.
(2) For Jian orchid, Mo orchid, and Han orchid, a temperature of about 10℃ is preferable.
If conditions permit, you can heat the orchids, maintaining a daytime indoor temperature of 15℃ and a nighttime temperature of 5℃. This is done in three stages: first, heating in late autumn and early winter to promote full maturity of the plants; second, no heating from mid-December to the end of January, just maintaining a temperature of 5℃ and allowing slow growth; third, from February, heating and providing sufficient lighting and a certain humidity can make orchids enter the growing period ahead of time, and new buds can grow after about a month and a half.
Do you understand the detailed introduction on how orchids survive the winter provided above?