How To Keep Your Greenhouse Warm At Night

How To Keep Your Greenhouse Warm At Night - Krosagro

How to keep your greenhouse warm at night, you ask? Using a bubble wrap, heater, thermostat, air circulators, and ventilation are just some of the ways on keeping your greenhouse warm.

The main essence of a greenhouse is to be structured in broad daylight so that the sun rays will have a good effect on plants. However, at night and it happens to be on winter days, your greenhouse plants will tend to freeze.

Cold nights are causing the temperature inside of your plant house to drop. But if you follow some of the tips on how to keep your greenhouse warm at night that we will give you. Your sheltered plants won’t be in grave danger.

Keeping your greenhouse warm at night is a must, so you better check which one could help you best.


Ways In Keeping Your Greenhouse Warm At Night

For you to save them indoors during a cold attack. You have to do some ways on how to keep your greenhouse warm at night. Just continue reading and feed your mind with these useful tips that this article is offering you.

Let us go right into it!


#1 By insulation using a bubble wrap

The first low-cost insulator is a bubble wrap. The bigger the bubbles that are on the wrap, the better the insulation that it will give you. It is because it is filled with more air, that is why it provides your additional greenhouse padding.

All you have to do is to cover all of the windows. Including the doors so that you can prevent the heat from escaping. If you already finished doing this. You don’t need to turn on your heaters continuously as long as your greenhouse is warm.

By this method, you are at the advantage of having a lesser cost for the heating cost.


#2 By using heaters

If you want a direct heating procedure, then a heater is what you surely need. Just turn it on inside your greenhouse for not a very long period, and it will surely warm your plants.

Though it may be a high amount at first. If you are sure of the quality. You will get a high level of satisfaction as time passes by. Make sure that you weigh all of the benefits and downsides so that you won’t have any disappointments in the future.


3. Using a thermostat

For you to make sure of monitoring the temperature inside of your greenhouse, then you should use a thermostat. By that account, you can then adjust the heat settings for the right range that you desire.

For an accurate reading, place the thermometer or the probe at the plant level. As an ideal temperature, aim for 24 degrees to 28 degrees Celcius, given that the lights are on.  If you want the best, buy a heater that is controlled by a thermostat.

As a tip, you will know that your thermostat is accurate if it is always between 2 degrees of your desired target. Your heater does not need to be always on as long as the temperature is enough to retain for some time.


4. Circulating the air

Even if you have a heater for your greenhouse during the night, it is not a hundred percent enough. So if you want for the heat to spread evenly and make sure that the air grows, try to circulate air.

Cold and hot patches will be a result of uneven heat. For a much worse scenario, when this happens, you will have inaccurate readings on the temperature.

If you do not want that to happen, the solution is at hand. All you have to do is to make sure that the air inside your greenhouse is well mixed and even.

That is why air circulators are a must that you do not want to omit during the nights of cold winter. They do not cost a high amount of money, yet they surely help you keep the heat evenly spread.


5. Ventilate your greenhouse

We all know that plants use carbon dioxide, and they release oxygen and moisture. If you do not ventilate your greenhouse, your plants will end up deprived of carbon dioxide. That is why you need to ventilate the habitat of your plants.

The only thing that you should keep in mind is to regularly open the vents so that fresh air will enter your structure. But in the night, make sure to close them so that your plants will be kept warm inside.

It is important to ventilate your greenhouse to help regulate the temperate inside of the structure. This process ensures that the plants will have enough fresh air so that they can perform photosynthesis and be productive.


6. Raise plants out of the cold ground

For you to do this, just prepare clay pebbles at the bottom of your pots. By that, your plants will be elevated and will be less likely to get cold during the night. Also, with the help of the heaters, you are sure that you have a warm greenhouse even on the winter nights.



Since we have discussed the ways on how to keep your greenhouse warm at night. We are confident that your plants won’t freeze. We honestly do hope that this article is of great help to you.

May you have a good day ahead, dear reader! Good luck on your greenhouse, and may your plants grow healthy and fruitful as time goes by.

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