100 day. Originally developed in 1887 by David Murray, gardener to the Marquis de Ailsa, Ailsa Craig is a wonderful onion. They are medium sized, and full of rich onion flavor. They aren't good keepers, but are well worth growing for fresh use. Unlike a lot of sweet onions, they caramelize with a rich and full onion flavor. Long Day.
Minimum of 150 seeds per packet.
Planting Depth: 1/8 inch
Plant Spacing: 4-6 inches
Start indoors 8 weeks before last frost. Sow up to 100 seeds in a 4-6 inch pot. To transplant, separate out the small, grass-like seedlings by picking up a bunch and rolling them gently in your fingers. Trim the tops to 4 inches and roots to 2 inches. Place in a deep trench, 5-6 inches apart. Cover the roots and then water. Seedlings are very tough and transplant well.
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Easy to grow like any onion. I wish I had grown more, as we are eating them very fast! The flavor is sweet and rich just as described. They are especially good roasted with other veggies.