Leftwood said: Mums are not grown from seed, but if they were it would be way way too late. Yes you could buy small plants now and they would bloom, but I don't think you would be happy with the results. You would be giving them transplant trauma right at the time they are deciding how many flowers to produce, so you won't get the display you hope for, and the plants will stay small. Next year, though, you would have beautifully flowering plants.