How to Plant Onions: Varieties, Timing, and Techniques for a Bountiful Harvest

Onions reward minimal effort with months of kitchen staples. Understanding day-length requirements, planting methods, and harvest timing ensures success across diverse climates.

Choosing the Right Variety

Short-day onions (10-12 hour sunlight): southern latitudes. Long-day onions (14-16 hours): northern regions. Intermediate-day: transition zones. Colors: yellow (storage), red (fresh use), white (mild). Buy sets or transplants locally for climate adaptation.

Planting Process

Work soil when dry enough. Trench 3-4 inches deep. Band 10-10-10 fertilizer (1/2 cup per 10 feet), cover with 2-3 inches soil. Plant sets 4 inches apart, 1 inch deep. Side-dress with fertilizer or manure as bulbs swell.

Harvest Strategy

When tops reach 5-6 inches, pull every other plant as green onions—this thins the row for larger bulb development. Harvest storage onions when tops yellow and fall. Cure in airy shade 2-3 weeks before storing.

Perennial Bonus

Chives return yearly in herb or flower beds. Minimal care, edible flowers, perfect baked potato topping.