Walla Walla Onion Seeds (Organic)

Walla Walla Onion (Allium cepa, Cepa group) is a famous heirloom with large bulbs, light-brown skin, and crisp white flesh that is mild and sweet, best enjoyed raw. A biennial intermediate-day onion, it has been the pride of Washington State's onion-growing region for generations.

At a glance

• Variety: Walla Walla, heirloom, intermediate-day, organic, non-GMO
• Botanical name: Allium cepa (Cepa group)
• Days to maturity: 100 to 150 days
• Sun: Full sun
• Spacing after thinning: 3 to 4 inches
• Planting depth: 1/4 to 1/2 inch
• Seeds per pack: About 100 (6,547 per 1 oz bulk)
• Height at maturity: 2 to 3 feet

Best for

• Fresh eating raw in salads and sandwiches
• Grilling and caramelizing
• Pulling young as green onions or scallions
• Gardeners wanting a sweet, gourmet onion

How to grow

Sow 1/4 to 1/2 inch deep at soil temperatures of 65 to 85 degrees, with germination in 4 to 10 days. Grow in full sun in nutrient-rich, well-draining soil and thin to 3 to 4 inches apart, or plant thickly and pull some young as green onions in 8 to 10 weeks. This variety performs well as a fall-planted crop in cooler climates and as a spring planting elsewhere. Use the sweet bulbs soon after harvest, as they are not for long storage.

Flavor profile

Mild, sweet, and sugary with crisp white flesh that shines raw.

About Grow Organic

Grow Organic, also known as Peaceful Valley, has supplied seeds, tools, and growing supplies to organic gardeners and farmers since 1976.