The aspiring greenhouse grower who may not have the budget or space for a detached greenhouse, or the proper place for a lean to does not have to despair. A window greenhouse may be just what the doctor ordered. This type of greenhouse is just what it implies, it transforms a window of the home into a plant growing area.
There are some requirements for a window greenhouse. First of all, the window should face predominately south. A southeast or southwest exposure would work, but a north exposure would doom the grower to only some tropical plants and African Violets. And these would probably not get enough light in the dark winter months.
There are three types of window greenhouse options available to the gardener. An exterior, glass or plexi-glass covered box installed over the window itself. A custom made window replacement, or clear glass shelves hung inside the window for the plants to grow on. Any one of these should fit your situation.
The exterior glass window greenhouse is the most common. This can be home made, using molding for framework, if desired. If you are handy with tools, or have a friend who is, this type of greenhouse is an interesting project to build. There are kits available, also, which may suit better if you are not the handy type. This type of window greenhouse cannot be used with casement windows, as the windows would not open after it is installed.
Heat for this greenhouse can come from the house itself, as the window can be opened a crack to allow heat from the house to infiltrate. A small electric heater could also be used. When the greenhouse is designed, be sure to make some provision for ventilation. The top and bottom should both be hinged to allow them to open and let air rise through it on warm, sunny days. Or place a small fan in it and blow the heat back into the home.
Custom made replacement windows are another option. This would be the expensive route. Measurements must be carefully made, and installation is definitely for a professional carpenter.
The third option is to just have some glass shelves made from a glass sheet. Shelf supports installed along each side of the window will hold the shelves securely, providing a wonderful place to grow plants.
A window greenhouse can allow gardeners who lack the space or need for a full fledged greenhouse. There are a number of options, providing an answer for just about every need.
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