How to prune boskoop glory grape

Mid-winter (December–January in the UK) while dormant, before sap rises. On a single or double Guyot system, retain one or two selected replacement canes from the previous season, tie them in horizontally, and cut back all other laterals to 2-bud spurs. Remove the old fruited canes entirely.

Annually. Yes — Boskoop Glory, a reliable UK outdoor grape, needs annual pruning on a rod-and-spur or Guyot system. It produces fruit on shoots growing from one-year-old wood. Prune hard each winter to maintain a framework and prevent the vine from exhausting itself with excessive foliage at the expense of fruit.

On a single or double Guyot system, retain one or two selected replacement canes from the previous season, tie them in horizontally, and cut back all other laterals to 2-bud spurs. Remove the old fruited canes entirely.