If you have a heater, and can maintain a minimum winter temperature of 37-41 deg f, then you should be able to grow oranges and lemons, but it may be difficult in a polytunnel to maintain these temps, Derek.

cheers

I,m having a go at citrus trees for the first time.....lemons.....we stood them outside during the summer only putting them back inside berfore the first frosts. They were much happier outside, inside we lost a few leaves which was worrying, even though they were misted regularly.....its a bit of a learning curve........

cheers might grow one on the patio next year then bring it in when cold

I was looking at the feeding, they seem to need a different feed winter and summer,
also some of the leaves were a bit yellow so they got a dose of epsom salts......

ta ithink i will keep the polytunnel for the usual although did put a grape in there .........and try a citrus at home......but have been thinking of a stepover apple tree to edge the paths either side of the plot anybody got any tips

Have you thought of a dwarf peach, we did quite well at the other house with one.....you need a paintbrush and pretend to be a bee to pollinate them, and prune carefully so that the tunnel isn't punctured. The dreaded peach leaf curl didn't affect it bybeing inside either.

nice one i could maybe put it in middle bed in tunnel

If you do that I wonder if you could train it as an espalier, then it wouldn't grow too high

good thinking could do that on one side and it wouldnt shade out other bed to much if any

I,d spend some time reading up on it all, nice little job in these cold days.

just come back from me plot always something to do .....but it does keep you warm