Most of our snow has just recently melted. I have some tulips just starting to come through now. My flower beds are still covered with leaves from the Fall. When should I be removing them? Because we still get cold nights I am guessing I should wait? I want to get things cleaned up now that I can actually see my flower beds but I don't want to remove the mulch too soon either. When do you know it is time to clean up? Thanks in advance.