Walla Walla Onion

Walla Walla is a long-day heirloom onion prized for its jumbo, uniform bulbs and exceptionally sweet, mild flavor. First grown on the island of Corsica and later bred in Italy.

At a glance

• Variety: Walla Walla Onion
• Type: Heirloom, open-pollinated, non-GMO
• Day length: Long day
• Bulb: Jumbo, uniform size
• Flavor: Sweet and mild
• Origin: Corsica, later bred in Italy

Best for

• Fresh eating and slicing
• Salads, burgers, and sandwiches
• Northern long-day growing regions
• Gardeners wanting a sweet, mild onion

How to grow

Start seeds indoors in late winter or sow directly once soil can be worked. Plant in full sun in loose, fertile soil. As a long-day variety, it bulbs best in northern latitudes during the long days of summer.

Flavor profile

Deliciously sweet and mild, with little of the sharp bite of storage onions, making it ideal for raw use.

About MIgardener

MIgardener is a Michigan-based family seed company offering affordable heirloom, open-pollinated, non-GMO seeds with a mission to make gardening accessible to everyone.