[bobw1956]

HI All

I have 2 vines in my green house, both are planted outside, and are approx. 15 feet long.

Next year will be the third year of growth, and are very healthy.

My question is how should I prune the vines, which I will be doing next month (Dec")

Thanks in advance

 

[Goosegirl]

I believe there is more than one pruning system for grape vines, so I suggest you look at the RHS link below for advice.
https://www.rhs.org.uk/advice/profile?pid=284

[andimac]

That's a really handy link. I hadn't realised there were 2 different systems for pruning!