What Is The Best Growing Temperature For Vegetables In A Greenhouse?

What Is The Best Growing Temperature For Vegetables In A Greenhouse?

What is the best growing temperature for vegetables in a greenhouse? Generally, the temperature in your greenhouse should be ranging from 80 up to 85 degrees Fahrenheit. But it doesn’t end there; you also need to learn how to regulate and keep the temperature stable within your greenhouse.

Greenhouses are built to create a warmer growing environment for the plants. If you want to ensure that your plants can have the perfect growing environment, you need to see that your greenhouse has the right temperature.

However, this will depend on the type of plants that you are growing in your greenhouse. Varying plants demand different temperatures. For that reason, we decided to come with this post so that you will know the best growing temperature for your vegetables.

We will be discussing about what is the best growing temperature for vegetables in a greenhouse below.


Greenhouse Temperature Regulation 

The greenhouse can source the sun’s energy and trap it inside the room, keeping the ground and the plants heated. That is why, on sunny days, there is a high possibility that the temperature may rapidly increase up to 100 degrees Fahrenheit or higher that is harmful to your vegetables.

On the other hand, when chilly days come, the temperature will significantly decrease, causing your plants to freeze. Take note that if you fail to regulate the temperature, your plants will suffer.

Probably, you are now asking about the things to do if the temperature range of your greenhouse is not right. You must monitor both the humidity and the temperature of your greenhouse to ensure a proper growing environment. I suggest that you buy a thermometer first so that you can check the temperature regularly.


Proper Ventilation

When taking care of your vegetables, you must keep them ventilated. Yes, the greenhouse provides an ideal environment for your plants. However, you have to maintain the appropriate level of temperature in the area.

The ventilation system will help in cooling down the greenhouse. It will circulate the air inside and control the humidity. There are different kinds of vents, it’s either you go for those that operate automatically or manually.

If you are after the more affordable option, then you should go for manual systems. Just do not forget to open the vents during the day and shut it at night.

But if you do not want extra work or if you aren’t at home most of the time, I suggest that you invest in automatic systems because it is inevitable that the weather will suddenly change.

Commonly, the vents are situated at the side or the top of the room. This hatches right at the ceiling. Some gardeners also utilize fans that absorb cool air and whisks out hot air.

Aside from that, you can also try other means to cool your greenhouse. This includes shade cloth, misters, evaporative coolers, or portable air conditioning units. Other people also place large plants along the walls of the building to provide shade.


Raising The Temperature

In cooler weather conditions, you must find ways to increase the temperature in your greenhouse. Some of the ways to do that include applying compost, paint coverings, placing heat lamps, or water barrels filled with water and painted black.

But you can also install supplemental heat sources inside the building. The most common ones that people utilize are gas and electric heaters. Avoid placing the portable heaters too close to your plants because it can dry them out.


Ideal Greenhouse Night Temperature

When the chilly night comes, you also need to ensure that the greenhouse has the right temperature for your vegetables. Make sure that it is warmer than the temperature during the day. It must not be lower than 90 degrees Fahrenheit.

But remember, the greenhouse temperature will also depend on the type of crop that you are cultivating. Some can produce optimal results on lower or cooler temperatures. These kinds of plants usually have more flower buds and branches than plants that grow better in warmer conditions.

Commonly, such kinds of plants require temperatures that are equal to 75 degrees Fahrenheit or even lower. They, too, can get through the chilly nights without the need for supplemental heat.


Most Ideal Kinds of Vegetables To Grow In A Greenhouse

Although gardening specialists claim that it is quite challenging to grow vegetables in a greenhouse, you can get through with this as long as you know the proper measures and guidelines.

It is best to cultivate vegetables that you can consume or even sell to the market. Take note that it should also be able to thrive indoors. Peppers, strawberries, lettuce, tomatoes, beans, peas, and cucumbers are some of the best vegetables to grow in your greenhouse.



So, what is the best growing temperature for vegetables in a greenhouse? I’m sure that you are already aware that the right growing temperature in your greenhouse depends on what you plant.

The best thing about a greenhouse is that you can adjust the temperature based on your plants’ needs. Keep in mind the importance of controlling your greenhouse temperature so that your vegetables can grow in an ideal environment.

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