Sowed seed of onion Ailsa Craig and Bedfordshire Champion; celery Full White; and cauliflower All The Year Round.
Only put about 10 -15 seeds of each in a 3 inch pot using New Horizons general purpose growing medium.
If the do not germinate or I cannot keep them alive until the spring, I will always be able to plant some more later. The longer maturing time you give the plants the bigger they will get. I would like some big plants this year.