I thought I would try some dahlia cuttings this year to see if I could be successful. I now have a bunch of cuttings in pots from 7cm then potted on through 9cm/11cm and 13cm pots and all doing well. My problem is what now with winter approaching? Are they too small to survive or do anything with? I know the 7cm and 9cm ones (and maybe 11cm too) will be for the bin as just too small, but what do I do with the bigger ones? Leave in pots over winter? Bring indoors? Put in cold frame? Or empty out and see if there is a tuber to store? I don't have a greenhouse to keep them in so that's not an option.