Greenhouse Conditions
Cooling

To maintain comfortable greenhouse temperatures, you may need to keep some light out of the greenhouse. Overheating problems are actually more common than underheating problems in greenhouses. Even in the North, a late spring temperature of 110° F has been recorded inside a greenhouse on a sunny day.

You can use various methods to block some of the sun's rays.

These include:

• hanging commercial shadecloth (made of spun or mesh vinyls) inside the greenhouse
• applying water-soluble shading compounds to glazing during late spring

Remember that if you create shade to cut down on heat, your plants will also receive less light, and may grow more slowly.

 

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