Many greenhouses can be used all year. Summer, surprisingly is one of the hardest times of year to use a greenhouse. Some people grow starts in their greenhouse to be planted out in the yard in the summer, while others use the greenhouse for a permanant home to special varieties of plants.

If a greenhouse is being used in the summer, the challenge of keeping it from overheating arises. More plants actually die from overheating then from freezing. Using a shade cloth and fan will help much of the time in some areas. In torrid climates, the only way to cool the greenhouse sufficiently is with a greenhouse cooler.

A greenhouse cooling system that sustains humidity as well as temperature levels is very desirable. Evaporative cooling systems work by reducing the air temperature as water evaporates, leaving a cool moist air…like the air you would find sitting next to a waterfall on a hot summer day. You can buy evaporative coolers for just a few hundred dollars. They run on very little electricity, and they do not use refrigerants so their impact on the environment is minimal.

To select a evaporative greenhouse cooling unit you need to know the square feet of your greenhouse. You can find the total square feet by multiplying the length of the greenhouse by the width.

A greenhouse cooling system will help you keep all your plants at the right temperature in hot climates. If you plan to use your greenhouse in the summer, be sure to look at your cooling options. Be prepared to invest in an evaporative cooler if you live in the South.