Endless sun makes a tunnel too hot. Try checking up several possible spots to put it, record when the sun is on each one, and how deep the shade is for the rest of the time. The advice usually is to orientate a tunnel E-W, but if you have only a few hours when the sun shines on it, then face the long side that way, to get max benefit. Also compare how much full sun it will get in summer with how much in winter, when the sun might not get above the tree tops. Often a tunnel helps extend the crops into winter, and to start early in spring, but if the sun is even more of a problem in winter, then it might not be worth it.
What do you intend to grow?
I love my tunnel which I've had now for about 18 years and would hate to have to get rid of it, but I never manage much by way of winter crops. I live in a very cold area so use mine for tomatoes, cucumber, squash, climbing beans, courgettes, garlic and overwintering onions (they do much better being able to dry properly compared with outside which is always wet), sweet corn, chillies and peppers, strawberries, spring salads. I would have no chance growing most of these outdoors. All I do grow outside is potatoes, broad beans, some peas, leeks, beetroot and winter brassicas.
Oh and I use it to set up an emergency mothering up pen at lambing time
Topic: To poly or not to poly. That is the question! (Read 2296 times)
