Hello Wizer, yes I think you are running out of space there ! But what are you growing. Is it possible some of it could be moved to cool conditions then into your polytunnel.
Just been having another look at your blog - Thank you. Good demonstration of making the newspaper pots. I've thought of another way of making them but it does involve a bit of sellotape. I'll try and put it on later.

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From each according to his ability, to each according to his needs.