Walla Walla Onion Seeds

Grow Walla Walla Onion (Allium cepa), a biennial — usually harvested as annual vegetable for walla walla onion, sweet onion seeds, and bulb onion.

Direct sow Walla Walla Onion where it will grow. Plant the seed approximately 1/4 inch deep. Plan for approximately Thin to 6–8 inches; rows 12–16 inches of spacing between plants after transplanting. Provide full sun. Expect germination in approximately 7–15 days. Walla Walla Onion is grown for walla walla onion, sweet onion seeds, and bulb onion.

Botanical Name: Allium cepa

Plant Type: Biennial — usually harvested as annual

Sun: Full Sun

Planting Depth: 1/4 inch

Spacing: Thin to 6–8 inches; rows 12–16 inches

Germination: 7–15 days

Maturity: 110–120 days

Plant Height: 12–18 inches

Grow Not By Chance combines quality seed with practical growing knowledge so you can understand what you're planting and what it takes to grow it.