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Which Is Best Polytunnel Or Greenhouse?

Which Is Best Polytunnel Or Greenhouse

If you’re looking for a greenhouse or polytunnel to grow your plants in, it’s important to compare the pros and cons. Greenhouses are rigid structures that are relatively inflexible, whereas polytunnels are much more flexible and easy to move around.

Climate control

Polytunnels and greenhouses are versatile structures which allow you to control the climate of your garden. This means that you can grow a wider range of plants than you could grow outdoors. Depending on the type of structure you choose, you can control everything from the temperature and light to the humidity and irrigation.

The orientation of your greenhouse or polytunnel will influence the pattern of sunlight it receives daily. The best orientation is east-west, where the light can enter even during winter. If you live at a high latitude, this is crucial. A mapping of the radiation entering your greenhouse will show the effect of dirt and algae. It can also highlight the need for more frequent cleaning of your greenhouse windows.

Polytunnels or greenhouses can also be used to protect crops from extremes of temperature and humidity. In addition to protecting crops from heat, polytunnels also protect crops from wind, hailstones, and cold waves. Many market gardeners use this method to extend their growing seasons. This way, they can plant cold-hardy crops in regions where their hardiness isn’t high enough. In addition, temperature increases are enough to allow selected plant varieties to grow healthy and productive.

Easy to assemble

When assembling a polytunnel, the most important part is to follow the manufacturer’s instructions carefully. You should place the tubes in the ground for stability. Once the tubes have been secured in the ground, the horizontal frame elements should be attached and then the door frames. Ensure that you have a helper by your side for the installation process. The covering should be installed on a wind-free day.

The polytunnel can be made from a variety of materials. The most popular material is aluminum, which is easy to assemble and does not corrode like steel. However, it has its drawbacks too: it can bend and break in harsh weather, and it may not retain as much heat as a steel greenhouse. Wood is an alternative material and can last a long time when assembled correctly. However, it is essential to take the appropriate precautions to prevent the growth of insects or other organisms in the greenhouse.


A polytunnel is cheaper than a greenhouse, and they are easier to install and move around. In addition, polytunnels are less delicate to move and can be put on rough ground. Greenhouses require a firm foundation and take longer to install.

For those who are just starting out, a cheap polytunnel is a good solution. A polytunnel is made of polythene, and is durable and weather-resistant. It costs less than a comparable sized greenhouse, and can be a good choice for a hobby gardener or professional horticulturist. These structures are generally used to grow plants, but they can also be used for storing machinery and equipment.

Greenhouses and polytunnels are both excellent options for growing plants, but each has their pros and cons. Greenhouses are more expensive and require a level base, while polytunnels do not. A polytunnel can be built on rough ground and even a slight slope. However, it is important to note that a greenhouse retains heat better than a polytunnel.

Better ventilation

When building a polytunnel or greenhouse, consider the type of ventilation you will need. The basic method of airing your greenhouse or polytunnel involves opening doors. While this method is the cheapest, it does not allow for much air circulation. It also takes a long time and is not particularly effective if you only have one door. Another type of ventilation is through net side vents.

If you plan to grow crops in a polytunnel or greenhouse, it is important to have adequate ventilation. Without it, the internal temperature can rise too high, damaging plant growth. Proper ventilation is the key to maintaining average temperatures and air quality in a polytunnel or greenhouse.

Cheaper in the autumn

Investing in a polytunnel or greenhouse is not a huge investment, and you can often get a kit for less than $60 from a garden centre. If you want to save money, you can try building your own polytunnel, using bamboo poles tied together or old tent poles. Plastic sheeting should cover the structure, and it is essential to water it regularly. You can also build a larger structure if your initial yields are high enough.

Autumn is an ideal time for growing vegetables. Prices for polytunnels and greenhouses are much cheaper in autumn than in other seasons. You can find a polytunnel or greenhouse at a local garden centre, or even look for freebies online and in classified ads. If you want a large structure, you should consider getting planning permission for the project.