I have a grapevine in my greenhouse, inherited from an elderly neighbour some 20 years ago. It is hell bent on world domination.
I try to follow pruning advice but it runs riot. For example, as the advice says, I have cut back all the fruiting stems to 2 leaves above the baby bunch of grapes but within a few days a new stem has grown from the bud in one of the leaf axils and is a foot long and growing fast!
I've just been hacking back the new growth and any unproductive stems almost daily but wonder if I'm just stimulating rather than discouraging growth.
I'm wondering whether to just cut it back to ground level in the autumn...
Does anyone have a tamed grapevine and how did they do it? 
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Gardening
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