However, during summer, a polytunnel can heat up quite a bit during the day. And while many plants, such as tomatoes, love it warm, if it gets too hot, they might not do very well.

One thing I wouldn’t recommend is going for the cheapest options. Because these tend to be of poor quality and are likely to only last for a few months. You might not be able to afford the best technology that is currently on the market, but it is always good to shop around to see what you can afford.If you do not have purpose-built housing you could use a garden shed or polytunnel, as long as there is adequate light, space and ventilation.’ First you have to decide what size polytunnel you need. This will depend on what you will use your allotment polytunnel for and what space you have available.

My recommendation would be to sit down and think carefully about what you want to grow on your allotment or in your garden. Inside the polytunnel but also outside. HEAVY DUTY POLYTUNNEL COVER: As well as superior framework our covers are 140gsm and the UPVC cover will let ample UV light in whilst also being expected to last a number of season in the British climate. There is ample skirt material around the bottom of the polytunnel cover to be dug into the ground for additional stability. Measuring 3-metres in length and 2-metres in width, this tunnel has plenty of room to grow a variety of crops. To compliment your polytunnel we also offer a range of powder coated wire shelving units and seedling trays.The short answer is yes. We have briefly talked about ventilation earlier, but let’s go into more detail. It features double stitched seams for maximum durability and has a double zip door that can be rolled up for easy access. There are also netted windows to ensure the temperature within the greenhouse can be controlled. These windows can also be covered by rolling down the PE covers. Covering 6 square metres, there’s plenty of space for your plants to grow – as well as room for you to attend to your plants in comfort. choice of foundation to suit your allotment: foundation tubes, anchor plates, screw anchors, base plates for timber, base plates for concrete

If the location of your garden or allotment polytunnel is especially exposed, you can look into reinforcing your polytunnel with wood, even if the polytunnel itself does not come with this feature. The best polytunnels for an allotment or garden will be extendable polytunnels. This means that you can add more space if you need to. I would recommend doing this at the same time your cover needs replacing though, as this will prevent you from wasting money. To be able to use the trenching method, the cover needs to be big enough, so look out for any mention that the polytunnel is suitable for this method. To prevent the cover coming off in strong winds, you have to either fix it to the frame or use the trenching method, whereby you bury the edges of the cover in the soil.If you know that it will have to withstand strong winds, you also want to make sure that you secure it as much as possible. This includes strengthening its structure by adding crop bars and storm bracing. Another consideration you should take into account is whether you are planning to heat your polytunnel or not.

If you want to overwinter slightly tender plants, your space needs will be smaller than if you want to extend your growing season, grow summer crops such as tomatoes or grow more exotic plants. PLANT PRIORITY: A strip window runs down one side and is fitted with mesh to keep bugs out whilst allowing ventilation, a clever feature allows the plastic flap to be clipped up creating a water catcher which funnels water to the end allowing you to place a water butt under it. All the parts are very high quality, giving you a polytunnel that will stand the test of time. And although it will take two people around two days to build it, the instructions and videos are very good. There are many vegetables that you can grow all winter in a polytunnel. Or maybe you need to bring in some of your outdoor plants to overwinter them. Grow a variety of flowers, plants and vegetables in this 3x2 metre polytunnel by Garden Grow. Constructed using powder coated steel frames covered with a waterproof PE protector, this polytunnel is durable and easy to construct.

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You could also consider growing a hedge to break the wind, if the wind tends to come from one direction. When choosing a polytunnel, there are some things to consider. After all, you don’t want to spend money, time and effort and then not get what you wanted. A well ventilated polytunnel will keep moisture levels in control, but also ensure the polytunnel does not get too hot.