Most people who own a greenhouse and plan on using it in the summer or live in a hot climate will need some type of cooling system.  Depending on what you plan to grow you will find that a greenhouse cooling system will probably be necessary to achieve optimal growing conditions.

It is a good thing to be able to control the temperatures in your greenhouse.  If the temperatures vary too much and do not fall within the guidelines below you may experience slower growth and other problems.

When growing tropical plants or plants grown for their fruit like tomatoes or citrus, you will want to establish higher greenhouse temperatures. Keep the greenhouse between 60-85 degrees.

If you want to grow green leafy vegetables you will need a greenhouse ventilation system that keeps the greenhouse at 45-70 degrees.  This temperature range is also appropriate for over wintering plants, maintaining shrubs or growing cool weather vegetables.

It is next to impossible to keep every spot in the greenhouse at the same temperature.  You will find that there will be hot or cold spots in every greenhouse.  You can still use these areas if you realize where they are and use them to your growing advantage.

Greenhouse cooling can be achieved by using fans, shade cloth, doors, windows or vents, but to truly cool your greenhouse in the summer, you may need an evaporative cooler.  Check with an online greenhouse site and they will be able to help you choose a greenhouse cooling system.

A greenhouse cooling system will help you to be successful in your greenhouse.