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Is A Polytunnel Better Than A Greenhouse?

Is A Polytunnel Better Than A Greenhouse

When deciding between a greenhouse and a polytunnel, you should consider which is better for your needs. A greenhouse is more expensive and difficult to maintain, while a polytunnel is more durable and cheaper. A polytunnel is also more effective at deterring pests.


If you want to extend your growing season or grow more plants than you could in your garden, a polytunnel is a good option. This type of structure is cheaper to buy and expand than a greenhouse. The polytunnel is also much bigger, which means you can grow several crops at once. These structures are suitable for a variety of garden needs, from growing vegetables and fruits to over-wintering and cultivating exotic plants.

A polytunnel is not as easy to shade as a greenhouse, so you will need to be more creative in shading your crops. For example, you may want to plant more plants near your plants to help keep the polytunnel cooler. In addition, you may want to install more ventilation to keep the polytunnel cool.


There are many benefits to using a polytunnel instead of a greenhouse. First, it is much stronger. Today’s polythene is surprisingly resilient. It can withstand high winds and snow, and it can even flex. If you want to protect your plants from wind or snow, you can also raise the sides and widen the entrances. In addition, polytunnels are also better for ventilation, which means they’ll prevent mould and condensation.

Polytunnels are also much easier to install. Unlike greenhouses, polytunnels don’t require a flat foundation. Typically, you’ll need to level the ground to install a greenhouse, which can take time. A polytunnel, on the other hand, can be placed on uneven ground.


The primary difference between a polytunnel and a greenhouse is their construction material. While a greenhouse is made from glass, a polytunnel is made of plastic. Glass greenhouses are generally more humid than polytunnels, due to the numerous tiny draughts and chinks in the structure. They are also prone to drying out much faster, and require more watering. Polytunnels are also harder to fit with a rainwater collection system than greenhouses. While polytunnels tend to be ideal for growing flowers, they also can be used for crops such as vegetables.

Another benefit of a polytunnel is its durability. A high-quality polytunnel can last for at least 15 years if cared for properly, although the plastic sheeting will need replacing every few years. A polytunnel also retains more heat than a greenhouse, allowing you to grow plants longer and more reliably.

Better at repelling pests

If you are growing crops in your polytunnel, you should be wary of ants. While they are unlikely to harm crops, they can cause significant damage in other areas of the garden. Thankfully, ants can be controlled by planting trap crops. Sunflower is a prime example, as it attracts ants and causes them to herd aphids onto it.

If you are unable to afford expensive, chemical pesticides, or do not want to invest in expensive equipment, you can use organic pesticides. Plant-based pesticides are safe for your health and the environment and can be found at local garden stores.

Less prone to damage

You should always place your polytunnel on level ground in a sheltered position. This way, the structure will be less vulnerable to wind damage. Also, the structure will be protected from natural folds in the landscape. Also, try to determine the usual direction of wind so that you can minimize its impact.

You should carefully select the right frame for your polytunnel. The material used to build the frame plays a crucial role in determining the longevity of the structure. A steel frame will resist rust and is sturdy enough to support the tunnel. However, a cheaper steel frame may be more brittle and may collapse under snow.

More environmentally friendly

A polytunnel is an excellent option for those who want to grow their own vegetables and other plants without the need for a greenhouse. These structures do not require digging and are much more flexible than a greenhouse. They are also easier to relocate than a greenhouse, which can be difficult to do if you change your mind. This is especially useful if you are just starting out in gardening and are unsure of where you’d like to set up your growing area.

The sheeting of a polytunnel is generally made of translucent materials which allow the light inside. This helps stimulate the photosynthesis process, which turns carbon dioxide into energy. Ideally, plants need about six hours of sunlight each day to grow. A polytunnel can be adapted to suit your specific needs. The sides and entrances can be widened to provide additional ventilation. This will prevent condensation and the growth of mould.