Audrey, wintersowing doesnt start til Winter Solstice: Dec 21, so you can easily WS poppies in pots in Jan/February, it's definitely NOT too late! Poppies can easily germinate in a couple weeks, they dont necessarily have to have 4-6 weeks of cold...You dont want them to germinate too early and then have to keep them alive thru the cold winter, so it's better to do a bit later than earlier (ie now)