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How Much Warmer Is A Polytunnel?

How Much Warmer Is A Polytunnel

Investing in a polytunnel is a great way to control the climate in your garden. This means you can keep your plants warm in the winter and cool in the summer. It also means you can control the humidity in your garden. This is essential for keeping your plants healthy.

Keeping plants warm

Keeping plants warm in a polytunnel isn’t always the easiest thing to do, but with a bit of planning, you can keep your plants thriving all season long. Whether you’re a seasoned pro or you’re just starting out, there are some tried and true tips that will help you save time and energy.

First off, you should consider using renewable energy sources to heat your polytunnel. These can be as simple as using the sun’s heat to warm up your soil, or as elaborate as a ground to air heat exchanger.

Second, you should consider using insulation to keep your pots warm. Using thick mulch will help to protect your plants’ roots, as will using bubble wrap around your plants’ containers.

For a truly gimmick-free method, you could try using a heat lamp and a heat mat. Heat mats are particularly useful for propagating seedlings, but they can also be useful for keeping pots warm in cold weather.

Controlling the climate

Depending on the type of polytunnel you’re interested in, there are different ways to control the climate inside. These can include temperature and humidity control.

Temperature control is the most common way to manage the climate inside a polytunnel. Automated temperature control is particularly useful.

The temperature of a polytunnel can increase dramatically on sunny days. To prevent this, you can install a ventilation fan to circulate air.

Humidity control is also important. Too much heat can kill plants. Soaking the polytunnel in water can help to control humidity.

Shade nets can also be used to control the climate inside. These are tied to the roof of the polytunnel on the inside. This is effective because it allows the rain to run off the surface.


Using polytunnels to grow crops is an excellent way to reduce your carbon footprint. However, the cost of a polytunnel is also a consideration.

A polytunnel is an excellent tool for growing vegetables and fruit. Polytunnels can be used to grow a wide range of plants, including flowers. They also extend the growing season. They can be used to grow crops in areas that would otherwise be too cold or too dry.

Polytunnels are also cheaper than greenhouses. Depending on the size of the polytunnel, they can cost anywhere from $50 to $1000. They can be made by anyone with a little construction knowledge.

Polytunnels are an excellent way to protect your crops from harsh weather. A polytunnel can be used to grow peppers, tomatoes, cabbage, and even potatoes. They are also used to grow winter lettuce.


Keeping a polytunnel cool is important for a number of reasons, particularly in summer. Ventilation is one way to cool a polytunnel. It helps to promote good air circulation, which can reduce the chance of disease.

It is important to know how much ventilation your polytunnel needs. It depends on your specific production goals. Some crops require more air circulation than others. It also depends on your local climate.

The best way to determine your ventilation needs is to observe the conditions in your tunnel. Hot, humid conditions can promote the development of diseases, while cooler, dry conditions reduce the chances of disease. Having adequate ventilation in a polytunnel can keep common plant diseases under control.

Ventilation can also be provided through the use of doors. However, these tend to be less effective than other options. It is better to install two doors in order to increase the effectiveness of the ventilation.


Keeping your plants warm in the cold weather can be a challenge. It’s no wonder that you’re looking for the best way to keep your crops fresh, warm and ready to harvest in the dead of winter. The good news is that there are a number of cost effective ways to keep your crops green and happy.

The best way to keep your vegetables fresh is to start by creating the right conditions. You can accomplish this by introducing a little bit of humidity and a bit of water to buffer temps. In addition to keeping your plants happy, a polytunnel can actually extend your growing season. By creating the right conditions, you will be rewarded with fresh produce all year round.

If you’re looking for a low cost and low effort way to keep your crops warm, consider a polytunnel. Adding some bubble wrap will help keep your plants warm during the colder months.