By Gattina
Bologna,
Italy 
Blackcurrants: I've been tidying up the vegetable garden, and behind the 6' tall "fence" of tomato plants (still covered in fruit) I discovered my forgotten blackcurrant bush. I know I should have pruned it after fruiting, but is it too late to do it now? We had our first frost last night, so it won't have any leaves shortly.
24 Oct, 2011
Answers
Thank you, as always, Kildermorie.
24 Oct, 2011
The only reason for pruning after fruiting is to allow time for new wood to grow up, as its that which will bear most of the fruit in the following year. So if you winter prune just take out old wood.
26 Oct, 2011
Thank you, Steragram.
27 Oct, 2011
I found a forgotten Blackcurrant plant in my border, just in time to get the last fruits, just the other week.
It is fine to prune them any time in winter. Remove any stems which are damaged/diseased first (you can normally tell them apart). Then prune the central part of the bush (the thicker, darker stems are the old growth) if applicable.
24 Oct, 2011