Double-knock out rose bushes too late to prune?
I would like some advice on pruning my five double knock out bushes I purchased last summer. They did wonderful all last summer, no problems! I decided last month that I wouldn't prune them this time around, but now that it is just about April 1st, they are already 4 feet, real leafy, but lanky looking. I think I would rather prune down to a foot high and I think they would be fuller and produce more roses this coming summer. My question, is it too late now to prune, since we got the snow yesterday and the ground is cold, maybe they would be ok to prune? Some advice would be much appreciated!