Walla Walla
Sweet Onion Seeds
Allium cepa
(OP) 105 days
Walla Walla sweet onions have their origins in Corsica, brought to Washington’s Walla Walla Valley by a French immigrant named Peter Pieri, where he perfected the extra large, extra sweet, yellow-skinned onions available today. Ideally suited to the Pacific Northwest climate; thrives in any region with mild summers. Walla Walla is the state vegetable of Washington. For hot summer climates, try Texas 1015Y. Packet is ½ gram, about 200 seeds.
Growing Walla Walla Onion Seeds
Plant Onion Seeds: Direct sow ½ in. deep, 2-4 seeds per inch, in rows 12-24 in. apart. Kept at 55-75°F., germination is in 7 to 15 days. Sweet Onions: Thin to 2 to 4 in. between plants. Bunching Onions: Thinning is not necessary unless you want an extra large diameter.
Harvest Sweet Onion: When stalks begin to fall over, pull onions out of the ground and sun dry for several days, then store in a cool, dry, dark location.
Harvest Bunching Onion: Bunching onions store very well in the ground, and can be harvested as needed over a long period.
U.S. Shipping Rates
Free shipping on U.S. orders over $70.00.
Free priority shipping on U.S. orders over $200.00.
Standard U.S. shipping is $7.99.
Priority U.S. shipping is $11.99.
International Shipping Rates
Shipping to Canada is $17.99.
International shipping to all other countries is $19.99.
We guarantee all the seeds we sell for one full year from the date of purchase. If you are unsatisfied with any seeds purchased from Swallowtail Garden Seeds, we will issue a refund. For customers in the U.S., we can send one-time replacements or issue a refund.