I have a large pot of saucy salvia. Think there may even be four plants in the pot. I am kind of concerned what to do in the winter because they are so bushed out. The pot will not fit through the bathroom door for cold nights. If I cut them back to what I consider a manageable size will they grow back like they are? I do not want to prune the plant and have it not grow back the way it is now. Pic is below.