Organic gardeners must stay vigilant to keep greenhouse problems under control.
Choose from an attached greenhouse or a freestanding greenhouse.
Freestanding greenhouses receive light from all sides, and contain more room for plants.
Whichever you choose, situate the greenhouse so that the largest side receives southern exposure for maximum light.
Only plants in excellent health deserve a coveted spot in the limited real estate of the greenhouse.
You must monitor your thermometer carefully and take steps to prevent the temperature from soaring during sunny winter days.
Temperatures in excess of 85 degrees encourage lank plant growth and mildew outbreaks.
Water the plants in the morning so the suns warmth speeds evaporation.
Avoid wetting the foliage of plants susceptible to mildew and fungal diseases, like roses and phlox.
Water your plants based on need and observation rather than a schedule, and err on the stingy side.
Remember, the greenhouse is naturally a humid environment.
Pest and Disease Outbreaks
Sometimes problems erupt despite the best vigilance.
Initiate treatment at the first sign of infestation for best results.
Aphids
Fungus Gnats
Powdery Mildew
Spider mites
Thrips
Whiteflies
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