"Onions: Planting, Growing and Harvesting Onion Plants" http://www.almanac.com/plant/onions Onion sets "Onions: Planting, Growing and Harvesting Onion Plants" Old Farmer's Almanac: Onions "Onions: Planting, Growing and Harvesting Onion Plants" "Onions: Planting, Growing and Harvesting Onion Plants" Onions Old Farmer’s Almanac: Onions http://www.almanac.com/plant/onions