In March I purchased a 12m x 4m x 3m high polytunnel.Raised beds down both sides path down the middle and irrigation.
Planted up everything ! Wrong decision, however tomatotes are prolific, some cucumbers,mega courgettes.
Brassicas too much leaf and parsnips with foliage the height of a small bush but the fruit short and ugly.
Is it all too hot ( i do keep the sides rolled up and the door open) not enough water, too much water?
Sweet peas went crazy as did the nasturtiums.
Any help on succesful polytunnel growing would be appreciated.