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Ailsa Craig Onion

Photos are representative and may not match your specific variety.

Ailsa Craig Onion

Root vegetable

Allium cepa

  • Full sun
  • Zones 5–10
  • 110 days to maturity
  • Vegetables
  • 4" spacing
  • pH 6–7
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  • Overview

    A distinct strain of the classic sweet and mild Ailsa Craig, this line has been specifically selected to perform in organic management systems. Mild onion with excellent size potential. Jumbo to colossal, round to teardrop-shaped bulbs with light yellow skins. Use fresh or for short-term storage. Adaptation: 38-60° latitude. Also available with NOP-compliant pelleting.

  • Planting

    Start seeds indoors 10-12 weeks before last frost, or plant sets in early spring when soil is workable.

  • Growing

    Sun: full. Soil pH: 6–7. Space plants 4" apart. Germination: 10-15.

  • Pests & diseases

    Common pests: Onion thrips, onion maggot, cutworms. Common diseases: Downy mildew, purple blotch, neck rot, white rot.