How to Grow Orchids in a Greenhouse

Опубликовал Admin
6-10-2016, 15:25
Orchids are native to a wide variety of climates across the world. This makes greenhouse growing a little tricky but knowledge about the different climatic needs of the orchid variety that you have purchased can make it an easier process. This article provides some pointers to assist growing orchids in your greenhouse.


  1. Be aware of the temperature requirements of your orchid choices. You will need to know what climate region your type of orchid comes from in order to replicate the right temperature for them. This does make mixing them a little tricky, so try to stick with one temperature region. Orchids can be roughly divided into three main climate types: cool, intermediate and warm. This breaks down as follows:
    • Cool: cool climate orchids are used to minimum winter night temperatures of 7ºC/45ºF and a maximum summer's night temperature of 14ºC/57ºF.
    • Intermediate: these orchids like a minimum winter night temperature of 10ºC/50ºF and a maximum summer's night temperature of 18ºC/64ºF.
    • Warm: warm climate orchids like a minimum winter night temperature of 14ºC/57ºF and a maximum summer's night temperature of 22ºC/72ºF.
  2. Keep the temperatures accurate. In order to be a successful greenhouse grower of orchids, these temperatures should be closely maintained. Although it may be possible to get away with slightly higher night temperatures, never exceed the higher day temperatures or the orchids will not cope well. If you do wish to grow orchids from different climatic zones, it is probably a good idea to divide your greenhouse and maintain different temperature levels. Use ventilators and extractor fans to regulate the temperature.
  3. Maintain humidity. Construct water sprayers over the area where the orchids are being grown in the greenhouse. These sprayers should be used at least once a day, and more often during hot weather. If you are not at home to monitor this, install an automatic system with a timer. Adjust according to seasonal needs.
  4. Prevent penetration of direct heat during summer. Orchids should not be subjected to direct heat, especially not under glass. Use shade cloths to reduce the access of sun, such as hessian or roller blinds, during hotter summer weather. Ensure that these heat blocking items can be moved to allow for the access of winter sun when orchids need more light to stimulate new growth for spring.
  5. Prepare greenhouse orchids for new seasonal growth. At the end of the flowering season, orchids go into a resting period during winter/cooler weather months. Keep a resting orchid in full light, dry and un-misted until the first growth shows in spring. Follow any instructions as given for individual orchids as well, which may differ depending on where they have been sourced from.


  • Advice on temperature settings and equipment for a glasshouse can be sourced from glasshouse specialists.
  • Get advice from your local nursery or orchid source on the needs for the orchids that you have purchased.

Things You'll Need

  • Greenhouse
  • Orchids
  • Thermometer/thermostat for adjusting temperatures
  • Misting system
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