There’s still time to plant short-day onions
Short-day onions generate their bulbs when daylight hours are less than 12. If you are going to plant onion plants this fall, make certain that you purchase only short-day varieties. Short-day varieties can be successfully transplanted as late as mid-December and still produce a normal crop.
Many of us will be planting almost that late, as Dixon Dale onion farm, one of the nation’s largest producers of onion plants, did not have plants ready to ship until mid-November.