Ailsa Craig Onion

Ailsa Craig Onion is a long-day heirloom from Scotland famous for its giant size and stunning sweet flavor. With yellow-brown skin, these sweet onions commonly grow 1 to 2 pounds each and have been known to reach up to 5 pounds, making them a showpiece of the summer garden.

At a glance

• Variety: Ailsa Craig Onion
• Type: Heirloom, non-GMO
• Day length: Long day
• Origin: Scotland
• Skin: Yellow-brown
• Size: 1 to 2 pounds, up to 5 pounds
• Sun: Full sun

Best for

• Fresh eating and slicing
• Exhibition and show gardens
• Northern long-day growing regions
• Salads and sandwiches
• Gardeners after maximum onion size

How to grow

Start seeds indoors in late winter for the longest growing season, then transplant in early spring. As a long-day onion, it bulbs best in northern regions with long summer daylight. Give full sun and steady moisture. Best enjoyed fresh, since these large sweet onions do not have the longest shelf life.

Flavor profile

Sweet and mild with the renowned flavor that has made Ailsa Craig a classic for generations.

About MIgardener

MIgardener is a Michigan-based company known for affordable heirloom seeds that help home gardeners grow more food from every packet.