Hard pruning on roses should be done around St. Valentine's Day, and planting Sweet Pea around St. George's Day is good - Since I learnt this gardening calender, I have been religiously following this routine. Hard pruning means HRAD pruning - so when I do this, I do it properly.
This year, there were still some roses around in the garden, despite it was already middle of Feb! The moment of 'Shall I, or shan't I' came, but it was for stronger growth for Spring - but I had to save them in a vase. Ouch, looks painful - damage caused by the snow the other day.
Cannot wait to see you again in the Summer!