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Garden Guide

Shop Onions by Day Length

Onions are a biennial vegetable grown commonly as an annual. While the seeds can be harvested in the second year. Onions themselves are commonly harvested in the first year for the vegetable. We offer a variety of bulbing onions which you can browse by type: Short day onions, are ideal for the southern states, intermediate day onions do well throughout the United States, and long day onions are best for northern latitudes. We also offer a great selection of bunching onions.

Check out our Vegetable Growing Guide for helpful growing tips and information.

50 100 true //store.trueleafmarket.com/cdn/shop/t/54/assets/review-fallback.json?v=33078429469613971781712858278
Legend: H for Heirloom, O for Organic, A for AAS Winner, F for staff favorites
28 Items
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Onion-Utah-Yellow-Sweet-SpanishUtah Yellow Sweet Spanish Onion Seeds - Bulk
-0
Heirloom
Onion Seeds - Long - Utah Yellow Sweet Spanish
Starting at $2.49
Onion Walla Walla Organic SeedOnion Seeds - Walla Walla (Organic) - Packet
-0
Heirloom
Organic
Onion Seeds - Long - Walla Walla (Organic)
Starting at $3.89
Onion Walla Walla SeedPacket of Walla Walla Onion Seeds
-0
Heirloom
Onion Seeds - Long - Walla Walla
Starting at $2.49
Red Creole Onion Seeds - Non-GMORed Creole Onion Seed Packet
-0
Heirloom
Onion Seeds - Short - Red Creole
Starting at $2.49
Onion Candy Hybrid SeedBulk Hybrid Onion Seeds
-0
Onion Seeds - Intermediate - Candy Hybrid
Starting at $3.09
Onion Red Burgundy SeedBulk Wholesale Red Burgundy Onion Seeds
-0
Heirloom
Onion Seeds - Short - Red Burgundy
Starting at $2.49
Ruby Onion Vegetable SeedsRuby Onion Seed Packet
-0
Heirloom
Onion Seeds - Long - Ruby
Starting at $2.49
Onion White Sweet Spanish SeedOnion Garden Seed for Non GMO Planting
-0
Heirloom
Onion Seeds - Long - White Sweet Spanish
Starting at $2.49
Red Grano Onion Seeds - Non-GMORed Grano Onion Seeds Packet
-0
Heirloom
Onion Seeds - Short - Red Grano
Starting at $2.49
yellow granex prr f1 hybrid onionnon gmo yellow granex PRR F1 onion seed bag
-0
Onion Seeds - Short - Yellow Granex PRR Hybrid
Starting at $3.09
early white grano prr onionnon gmo early white grano onion seed bag
-0
Heirloom
Onion Seeds - Short - Early White Grano PRR
Starting at $2.49
Onion Seeds - Imai Early YellowPremium Bulk Seeds - Mylar Package
-0
Heirloom
Onion Seeds - Intermediate - Imai Early Yellow
Starting at $3.99
Onion - Long - Southport White Globe 404southport white globe 404 bunching onion seed packet
-0
Heirloom
Onion - Long - Southport White Globe 404
Starting at $2.79
Onion Seeds - Shonan RedPremium Bulk Seeds - Mylar Package
-0
Heirloom
Onion Seeds - Intermediate - Shonan Red
Starting at $3.99
Onion Seeds - Texas Grano 502 (Organic)
-0
Heirloom
Organic
Onion Seeds - Short - Texas Grano 502 (Organic)
Starting at $2.99
Onion White Grano Treated SeedGMO Free White Grano Onion Seed
-0
Heirloom
Onion Seeds - Short - White Grano (treated)
Starting at $11.39
Onion Eclipse L303Eclipse L303 Onion Seed Packet
-0
Heirloom
Onion Seeds - Short - Eclipse L303
Starting at $2.49
Borettana Yellow Cipollini Onion SeedsBorettana Yellow Cipollini Onion Seeds Packet
-0
Heirloom
Onion Seeds - Short - Borettana Yellow Cipollini
Starting at $3.09
Onion Seeds, Bunching - Ishikura ImprovedPremium Bulk Seeds - Mylar Package
-0
Heirloom
Onion Seeds, Bunching - Ishikura Improved
Starting at $3.99
Barletta OnionBarletta Onion Seed Packet
-0
Heirloom
Onion Seeds - Short - Barletta
Starting at $2.49
Onion Seeds - Short - Superex Yellow Hybrid
-0
Onion Seeds - Short - Superex Yellow Hybrid
Starting at $3.99
Red Of Florence OnionMountain Valley Seed Packaging
-0
Heirloom
Onion Seeds - Red Of Florence
Starting at $2.49
Onion Seeds - Short - Texas 1015 Super Sweet
Starting at $2.49
Onion Seeds - Long - Southport Red Globe
Starting at $2.49
Onion Seeds - Intermediate - Red Torpedo
Starting at $2.89
Onion Seeds - Bunching - White Lisbon
Starting at $2.49
Onion Seeds - Intermediate - Red Cipollini
Starting at $2.49
Onion Seeds - Long - Stuttgarter (Organic)
Starting at $3.89
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Short - Barletta", "url": "/products/onion-seeds-barletta", "available": true }, { "featured_image": "files/1687447422_Untitled-1.jpg", "secondary_image": "", "price": 399, "handle": "onion-seeds-superex-yellow-hybrid", "title": "Onion Seeds - Short - Superex Yellow Hybrid", "url": "/products/onion-seeds-superex-yellow-hybrid", "available": true }, { "featured_image": "files/Onion-Red-Florence_1fd2f7e8-2a74-4006-a703-9a54c45710aa.jpg", "secondary_image": "files/MVS_1_lb_e233c62d-dc9c-41dc-9c9b-5941e0be0fc8.jpg", "price": 249, "handle": "onion-seeds-red-of-florence", "title": "Onion Seeds - Red Of Florence", "url": "/products/onion-seeds-red-of-florence", "available": true } ]
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