Treevly is right in saying the plants will start to reveg at some point because spring. When that point is depends on the genetics of your plants, and what latitude you're at in Italy. The further south you are the shorter the days are now, and the longer your plant will stay in flower before 'waking up'.
Either way, you can still harvest just the flowers. Leave as many big leaves on as you can so that the plant will reveg, grow huge and give you a much bigger harvest in the fall. Don't take off all the flowers because new growth will come from them. But, flowers do suppress regrowth, so try to take most of them off. Just use a teeny nail scissors or other delicate tool. I'm sure you'll do well, have a great harvest!
"I only grow to support my breeding habit." Mr. Greengenes