In 9b You would need short day onions Some varieties will bulb in April, notably Fast Track and Quick Start which are used by Vidalia growers for the early market. Most will bulb by May. Century is an example of a variety that bulbs about two weeks later. Short Day Onion (Allium cepa 'Fast Track') Onion (Allium cepa 'Century') @Sally: I would recommend an Intermediate day onion like Candy for your area.