Posted: 18/05/2015 at 11:18
Hmmm .... If you've got plants in heat and light you'll need to be involved all year round. I suspect that it wouldn't be so much growth in the winter - I think it would be more regular inspection to make sure that things weren't deteriorating or that there weren't pests or botrytis setting in.
Gunnera naturally dies down in the winter - which would be just as well - one well-grown gunnera plant would be bigger than your polytunnel.
I hope it doesn't seem that I'm throwing a spanner in the works - it's just that it's such a shame when someone's enthusiasm goes to waste because they've not prepared properly. I hope that you can find some plants that you'll be really interested in growing and that will hold your interest
Do you know the Hardy Tropicals UK website? http://www.hardytropicals.co.uk/forum/viewtopic.php?f=1&t=14270&sid=d5ee25e4ec7f0a7b3315eb9b3af15054&start=15