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Growing Orchids in the Basement

July 13, 2011 By admin

Have you tried to grow orchids at home and not had a lot of success? Imagine an orchid jungle in the basement with Cattleya and other sun-loving orchids in bloom! The secret is high-intensity discharge (HID) lights developed especially for growing plants. There are two types of bulbs used in HID fixtures: metal halide and sodium. These bulbs produce different light spectrums. While either can be used to grow orchids, your plants will do best under metal halide bulbs. Sodium lamps were developed to extend the day length in commercial greenhouses and provide a more limited spectrum.

How to Grow Orchids in the Basement

  1. An HID fixture of at least 400 watts to illuminate a growing area of 9-12 sq. feet. The higher the wattage, the wider range of orchids you can grow.
  2. To increase the size of your orchid garden, simply increase the wattage or number of fixtures.
  3. Set your plants on benches or tables below the fixture with ‘High’ light orchids centered under the light and ‘Low’ light orchids placed towards the edges.
  4. Lights should be on for 12-14 hours each day. A timer can be used to regulate the duration.
  5. Maintain humidity by enclosing the growing area with plastic sheeting, and run a humidifi er 24 hours a day.
  6. Use fans to circulate the air within the growing area and to exchange the air with the surrounding basement. Most orchid growers fi nd they need at least two or more fans to achieve this necessary air movement. The fan for moving the air in and out of the growing space will assist in dispersing the heat
    generated by the HID lights.

Suggested Orchids To Grow
Both the light intensity and temperature range in your growing space will determine what orchids you can grow and bloom. Consult other basement orchid growers in your area to learn what works best.

Light: ‘High’ light orchids such as Cattleya, Dendrobium, or Vanda will require a 1000-watt fixture to grow and bloom well. A 400-watt fixture will allow you to bloom ‘Medium’ light or ‘Low’ light orchids nicely.

Temperature: Artificial light conditions usually provide intermediate to warm temperature ranges. In choosing your orchids, refer to the chart below. Night-time temperatures can frequently be the most challenging to provide, so choose your orchids by that factor first.

Category Day Temperature, °F Night Temperature, °F
Cool 60-70 50-55
Intermediate 65-75 55-65
Warm 75-85 65-70

Filed Under: Orchid Care Tagged With: Growing Orchids, Growing Orchids in the Basement, orchid care

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