I have inherited to hugely overgrown Worcesterberry plants (very similar to Jostaberries), which are now well over six feet tall and very untidy. Would I be safe to prune these back this autumn/winter, and if so, how hard?.
You can cut out some of the oldest fruiting branches. Do not cut out the ones which are going to fruit this year.
Thanks. Virtually all the branches are brearing fruit this year. I shall try doing as you say, and also shortening a few other branches, but it looks as though I may have to abandon them to the birds in the end. These aren't in the fruit cage; the only way to protect them from our greedy blackbirds is to tie netting round individual branches!