About Electricity
Be sure to include enough electrical outlets in your greenhouse. You may need extra lights, soil cables, or emergency heating, and it is provoking-and possibly dangerousto have to run an extension cord to an outlet in your house to get adequate power or light.
In the small greenhouse the cost of electricity can usually be held to a minimum. By operating without growing lights (artificial lighting units) and soil cables you will have only the cost of a light or two for working after dark. If you install fluorescent lights, you can figure this additional operating cost -varying with the locality-at approximately 1/4 cent per hour for two 40-watt tubes. A 100-watt incandescent bulb burns at about 1/3 cent per hour.
Propagating Cases
You can convert one end of your growing bench into a propagating case by installing an electric soil cable. And in this area you can raise any plants requiring bottom heat for growth. To create the “case,” place a piece of glass over the planting; or you can have a glass frame made to fit over the cuttings. A plastic propagating case would also be good.
About Water
Include hot as well as cold water in the plumbing plans for your greenhouse. A mixing faucet will make it possible for you to draw water of proper temperature at any time for your plants. There is no need to pipe softened water into your greenhouse, unless you want it for hand-washing. Most types of artificially softened water should not be used on plants. While it may do them no immediate harm, it may gradually weaken cell structure and lead to plant collapse.
Copper piping is satisfactory for use in the greenhouse. I have some in mine, and it has never caused any “copper poisoning.” Experts at the University of Minnesota assure me that water passing through copper pipes is perfectly safe to use on all types of plants.
Tags: home greenhouse
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