my 15 year old grapevines have been pruned each year but I now realise they haven't been pruned hard enough. It is too late to prune them now ie mid May with leaves coming out? Or should I wait till winter.
Too late now for major pruning of old wood but you can keep the new growth in check this year. As a starting point prune each new shoot at two leaves beyond any fruit/flower cluster. Prune out side shoots as they appear. Next winter you can carry out major reshaping. I would recommend trying hard wood cuttings when you hard prune as an insurance policy.
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Too late now for major pruning of old wood but you can keep the new growth in check this year. As a starting point prune each new shoot at two leaves beyond any fruit/flower cluster. Prune out side shoots as they appear. Next winter you can carry out major reshaping. I would recommend trying hard wood cuttings when you hard prune as an insurance policy.
Thank you steephill.