Sowing Info

When to Sow Outside: Mild Climates only: Late summer or early fall. Mid-October is the recommended, traditional sowing period.

When to Start Inside: Mild Climates only: 10 to 12 weeks before your average first fall frost date. Transplant outside no later than 6 weeks before your average first fall frost date. Ideal soil temperature is 60°–85°F.

Days to Emerge: 7 ‒ 15 days

Seed Depth: ¼"

Seed Spacing: A group of 2 seeds every 4"

Row Spacing: 12" ‒ 16"

Thinning: When 2" tall, thin to 1 every 4"

Growing Info

Harvesting: When onion tops have fallen over and turned yellow or brown, they are ready for harvest. Harvest in the morning, lifting onions with a garden fork. Dry them in the garden in the sun for 2 to 3 days, lightly covering the bulbs with straw, or the tops of other onions to prevent sunscald. Cure onions for 3 to 7 days in a dry area with good air circulation. Once dry, cut the roots to 1/4", and the greens to 1" to create a seal, preventing decay.

Special Care: Keep growing area weed-free. Onion size can decrease 4% per day if competing with weeds‒that’s 50% in 2 weeks. If bulb pushes itself out of the ground, you may cover it lightly with straw, but not soil, as soil will prevent the onion bulb from forming properly.