I have a poinsetta plant I put in the ground at the end of last Christmas and it has grown into a wonderful bush. Now I want it to bloom nicely for this Christmas season and I think I read somewhere that about this time of year you are suppose to clip back the leaves. Is this true? If so, how far down should I clip it and is the end of October too soon , too late , or just right? Awaiting your reply, Patti