Keith, good luck with growing them from seed. Takes patience and time, 3-5 years to get blooming . It is my understanding that you don't want to force dormancy on the young seedlings and immature bulbs, since you want the leaves to keep photosynthesizing and putting mass on the bulbs as rapidly as possible. Treat the little bulbs as houseplants in the winter. In the northern hemisphere, you are forcing dormancy in the mature bulbs in order to trick them into blooming close to Xmas instead of late spring which would be the expected time. Perhaps someone who has successfully done this can comment on winter handling of the seedings and immature bulbs since I have no personal experience. about this topic.
