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Top 10August 2025

Best Onions Seeds For Planting Outdoors

We made a list of the top 10 Onions Seeds For Planting Outdoors based on verified reviews, popularity and other factors which we summarized for you in this list.

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HOME GROWN 𝗨𝗦𝗔 𝗣𝗥𝗘𝗠𝗜𝗨𝗠 8 Onion Seeds for Planting – 1,600 Heirloom 𝗡𝗢𝗡-𝗚𝗠𝗢 Vegetable Seeds – Grow Sweet, Yellow, Red, Spanish, Green & Vidalia Onions in Outdoor or Indoor Home Garden

HOME GROWN 𝗨𝗦𝗔 𝗣𝗥𝗘𝗠𝗜𝗨𝗠 8 Onion Seeds for Planting – 1,600 Heirloom 𝗡𝗢𝗡-𝗚𝗠𝗢 Vegetable Seeds – Grow Sweet, Yellow, Red, Spanish, Green & Vidalia Onions in Outdoor or Indoor Home Garden

✓8 ONION VARIETIES WITH DISTINCT ADVANTAGES AND UNIQUE FEATURES. A diverse range of unusual flavors, shapes, and colors, from sweet to pungent. Perhaps it’s time to welcome something new to your garden. Diversity is the key to an interesting and abundant harvest. Why not discover new aspects of a familiar vegetable when nature offers such rich choices? Amazing variations of this valuable everyday product will delight your taste buds. Many dishes are unimaginable without these vegetables.
✓BARLETTA is a high-quality, extra early, vigorous salad-type variety. It’s grown both for its green stalks and bulbs. Long, hollow, dark-green stalks are rich in carotene, essential oils, and phytoncides. Bulbs are flat-round, pearl-white, with thin necks. Its semi-spicy, juicy, sweet, mild taste and tender texture provide gentle piquancy suitable for a wide range of dishes. An excellent flavor base for sauces, marinades, and pickling.
✓RED BURGUNDY is a popular culinary variety. This early, hardy, attractive variety consistently produces high yields of large, firm bulbs under diverse conditions. It grows quickly, is drought-resistant, and produces until early frost. Noted for its oval shape and thick purple-red skin, it's valued for quality, long storage, and distinctive spicy flavor—rich, gently spicy, sweet-pungent without bitterness.
✓Crisp with red rings inside, bright and appetizing in fresh vegetables, stews, pizzas, burgers, sauces, marinades, and garnishes, especially good grilled with meat. Also suitable for green stalk production, RED BURGUNDY yields juicy, robust greens. The nutritional value of red onions lies in their complex composition, including numerous natural antioxidants, a broad spectrum of minerals, vitamins, essential oils, and beneficial amino acids.
✓ECLIPSE L303 is an heirloom, open-pollinated variety known for excellent adaptability. Bulbs are thick, medium-sized, and flat-round with white skins. Dense, uniform, and crunchy texture. Both bulb and bunching onions have a mild, fresh flavor ideal for salads, sandwiches, burgers, soups, stews, and main dishes. Rich in beneficial compounds and high in vitamin C.
✓TOKYO LONG WHITE is a Japanese heirloom variety, known for its frost resistance and small white bulbs. Grown for its early, aromatic, juicy green stalks with a spicy-sweet flavor, rich in vitamins. Suitable for outdoor cultivation from spring to late autumn in all regions. Fast-growing, it produces long, thin, tender green tops with a slight waxy coating. Rich in vitamins and minerals including magnesium, potassium, and iron. Harvest in spring, summer, and fall.
✓WHITE GRANO is a high-yielding, classic white heirloom onion. Quite large and dense, it has a perfect round shape and papery white skin. Highly valued for its rich composition of beneficial nutrients and unique taste. Its subtle, mild, slightly sweet flavor with low pungency is especially pleasant and versatile in culinary applications. Thanks to its delicate taste and aroma, it’s ideal for fresh salads and baking, and is the key ingredient in the famous French onion soup.
✓WHITE SWEET SPANISH UTAH produces large, globe-shaped bulbs with thin necks, easily peeled white skins, tender flesh, and a distinctive mild flavor. Its lightly sweet onion flavor is excellent for creamy sauces and broths. Ideal for onion rings and salad onions.
✓YELLOW SWEET SPANISH UTAH is a productive, high-quality, golden-brown variety. Its large size, firm texture, and sweet, delightful flavor make it ideal for slicing. High sugar content makes it excellent for caramelizing. Known for resilience, shelf life, and excellent storage capability.
✓WALLA WALLA is the official vegetable of Washington State. This highly productive variety features uniform formation, ranging from medium to giant size, and has juicy, tender flesh. Bulbs are spherical with golden-brown, parchment-like, dry, flaky skin. Translucent, crunchy flesh contains many thin layers of white rings. High sugar and water content create a distinctive, mild, sweet flavor with a hint of spice.

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29% Discount

Organo Republic 8 Onion Seeds Variety Pack Heirloom, Non-GMO, Sets for Indoors, Outdoors Gardening. 2200+ Seeds: Walla Walla, Green Onion, Red Burgundy, White & Yellow Sweet Spanish Onions

Organo Republic 8 Onion Seeds Variety Pack Heirloom, Non-GMO, Sets for Indoors, Outdoors Gardening. 2200+ Seeds: Walla Walla, Green Onion, Red Burgundy, White & Yellow Sweet Spanish Onions

Organo Republic

✓Gardening Kit: 8 Unique Onion Seeds Variety Pack NON GMO Heirloom Seeds LESS THAN $0.70 PER SEED VARIETY PACK 2,200+ seeds including: Onion Eclipse L303, Onion Red Burgundy, Onion Tokyo Long White Scallion, Onion Violet de Galmi, Onion Walla Walla, Onion White Grano PRR, Onion White Sweet Spanish, Onion Yellow Sweet Spanish.
✓Enhanced Gardening Experience: Our seeds for planting outdoor and indoor garden come in a waterproof resealable bag with 8 individual craft seed packets inside. Enjoy planting home garden with mini gardening supplies including leaf clipper, tweezers, seed dibber tool, weeding fork, and widger tool. Scan the QR codes on the seed packets to access online gardener basic growing guide and culinary book. Learn about vegetable gardening, discover everyday recipes to make the most of your harvest.
✓Garden Success Assured: Whether you have an indoor hydroponic garden or an outdoor onion patch, our seeds are perfect for any setting. With a superior germination rate proven through various tests, enjoy fresh vegetables growing food all year round. Enjoy the satisfaction of growing seeds on your own garden, knowing that our high-quality seeds for planting vegetables guarantee abundant harvest and delicious meals for you and your family.
✓Perfect Survival Seeds Garden Gift: Our garden starter kit makes an ideal gift for couples, vegetarians, vegans, gardeners, and anyone looking for a new hobby. Whether it's a housewarming, party, birthday, anniversary, or any occasion, surprise your loved ones with the joy of gardening and the promise of fresh, homegrown plant food.
✓Quality You Can Trust: Proudly made in the USA by a Small Family-Owned Business, our seeds for planting onions undergo rigorous testing with a 90%+ germination rate. Sealed to last for up to 2 years, you can trust the freshness and viability of our garden seeds.

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12% Discount

Sow Right Seeds - Long Day Onion Seed Collection for Planting - Yellow Sweet Spanish, Ringmaster, Ruby Red, Ailsa Craig - Non-GMO Heirloom Packets with Instructions to Plant a Home Vegetable Garden

Sow Right Seeds - Long Day Onion Seed Collection for Planting - Yellow Sweet Spanish, Ringmaster, Ruby Red, Ailsa Craig - Non-GMO Heirloom Packets with Instructions to Plant a Home Vegetable Garden

Sow Right Seeds

✓Beautiful - Large premium packets of Yellow Sweet Spanish (Allium var. ‘Yellow Sweet Spanish), Ringmaster (Allium var. ‘Ringmaster’), Ruby Red (Allium var. ‘Ruby Red’), and Ailsa Craig (Allium var. ‘Ailsa Craig) Onion garden seeds. A delicious garden vegetable fit for every occasion. Minimum of 500mg per packet.
✓Productive - Onions germinate in 7-15 days when soil temps are 50-70°F. Plant in an area with full sunlight. Mature in 95-120 days.
✓Good Eats - Experience a wonderful variety of shapes, sizes, and colors that make a tasty addition to every meal. Onions are a delicious ingredient in a variety of dishes. They are great in salads, sandwiches, and fresh salsas. Fragrant onions will add hearty flavor to your favorite dishes.
✓Easy to Grow - Instructions included on each packet. Plus, we are available to answer all your questions. If these seeds don’t germinate, we will happily make it right for you.
✓Safe and Sustainable - Our operation is fully solar powered, and Sow Right Seeds has taken the Safe Seed Pledge to sell only fresh Non-GMO heirloom seeds for you and your family.

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Onion Seed Collection for Planting - 4 Packets to Plant & Grow Red Burgundy, Walla Walla, White Grano, Toyko Long White Bunching Onions - Non-GMO Heirloom Varieties- Survival Garden Seeds

Onion Seed Collection for Planting - 4 Packets to Plant & Grow Red Burgundy, Walla Walla, White Grano, Toyko Long White Bunching Onions - Non-GMO Heirloom Varieties- Survival Garden Seeds

SURVIVAL GARDEN SEEDS

✓Versatile Collection: Start your seeds in fall or spring and plant your seedlings outdoors to enjoy a summer crop of delicious onion bulbs. This set of onions is appropriate for container gardens and raised beds. It can be grown outdoors in full sun or indoors with sufficient light.
✓Four Reliable Cultivars: Ideal for those living in Zone 5 or 6, this unique collection of onions includes a mix of long day, short day, and intermediate day onions. The onion sets can be grown outside these zones, but may not grow to full size. These popular heirlooms include Red Burgundy, White Grano, Walla Walla (yellow), and Tokyo Long White Bunching Onion (green onion).
✓Sustainable Living: Vegetable gardening is an essential foundation of a more self-sufficient lifestyle. Home-grown fruits and vegetables are generally more flavorful and nutritious than store-bought. This mix of onion seed varieties will provide you with plenty of tasty produce for using fresh and storing long-term.
✓The Info You Need to Grow: The onion seeds are packed in a beautiful paper packet with instructions for successful growing and germination in your home garden. Each package of onion sets for planting also has instructions for saving seeds after harvest. Getting started is simple for both beginner and experienced gardeners.
✓Small American Family-Owned Business: We’re committed to providing fresh, high-quality Onion seeds for planting now or storing for future seasons. We sell only safe, non-hybrid non-GMO heirloom seeds that are open-pollinated, untreated, and tested for the best germination rates. They remain viable for years if stored cool and dry.

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500 Red Burgundy Onion Seeds for Planting Short Day Heirloom Non GMO 2 Grams Garden Vegetable Bulk Survival Hominy

500 Red Burgundy Onion Seeds for Planting Short Day Heirloom Non GMO 2 Grams Garden Vegetable Bulk Survival Hominy

✓Red Burgundy Onion seeds garden seeds vegetable seeds bulk

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Sow Right Seeds - Heshiko Japanese Bunching Green Onion Seeds for Planting - Non-GMO Heirloom - Instructions to Plant and Grow a Kitchen Garden Indoors or Outdoors - Mild Onion Flavor for Cooking (1)

Sow Right Seeds - Heshiko Japanese Bunching Green Onion Seeds for Planting - Non-GMO Heirloom - Instructions to Plant and Grow a Kitchen Garden Indoors or Outdoors - Mild Onion Flavor for Cooking (1)

Sow Right Seeds

✓Beautiful - Large full color packet of Heshiko Japanese Bunching Onion (Allium fistulosum) seed, very popular in many Asian and American dishes. Grows 12-14" with mild flavored leaves and white flesh. Delicious addition to stir-fries, soups, and salads. Non-bulbing and hardy in cold weather. Minimum of 500 mg per packet (about 250 seeds).
✓Productive - Green Onions germinate in 10-14 days when soil temps are 68-75°F. Plant 1/4” deep and space 1-2” apart in an area with full sun. This variety will grow 10-14” tall with a spread of 1”. This variety will mature in 60-70 days, plant in USDA zones 2-9.
✓Fresh Green Onion On Hand - The smell and taste of fresh herbs is amazing. Use these Heshiko Bunching Japanese Onions to add a mild onion flavor to your favorite foods.
✓Easy to Grow - Instructions included on each packet. Plus, we are available to answer all your questions. If these seeds don’t germinate, we will happily make it right for you.
✓Safe and Sustainable - Our operation is fully solar powered, and Sow Right Seeds has taken the Safe Seed Pledge to sell only fresh Non-GMO heirloom seeds for you and your family.

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Organic Onion Seeds Variety Pack - 6 Individual Packs - 2025 Season - Walla Walla, Gladstone, Red Geneva and More! for Indoor & Outdoor Planting (Non-GMO, Certified Organic)

Organic Onion Seeds Variety Pack - 6 Individual Packs - 2025 Season - Walla Walla, Gladstone, Red Geneva and More! for Indoor & Outdoor Planting (Non-GMO, Certified Organic)

✓ONION LOVERS VARIETY PACK: This pack brings together a versatile mix of onions, from crisp green onions to sweet yellow and bold red varieties. Perfect for gardeners looking to grow flavorful and essential staples for any kitchen.
✓6 INDIVIDUAL SEED PACKETS: Parade Green Onion, White Ishikura Green Onion, Walla Walla Yellow Onion, Utah Yellow Sweet Spanish Onion, Gladstone Onion, Red Geneva Onion.
✓THE FRESHEST SEEDS - 2025 SEASON: Elevate your gardening game with our freshest seeds, ensuring high germination rates. Make gardening a joy, where success sprouts effortlessly and blooms into a kaleidoscope of colors.
✓PREMIUM GIFTABLE PACKAGING: Unwrap gardening delight with our premium seed packaging. Tailored for optimal storage, complete with planting instructions and a reusable zipper – a thoughtful gift for any nature-loving enthusiast.
✓GUARANTEED TO GROW: Plant with confidence! We stand by our seeds. If they don't germinate, we'll refund you within 30 days, no questions asked. Sweet Yards guarantees a worry-free and flourishing garden.

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Organic Onion Seeds (Walla Walla) - Approx 200 Seeds - USDA Organic, Non-GMO, Open Pollinated, Heirloom, USA Origin

Organic Onion Seeds (Walla Walla) - Approx 200 Seeds - USDA Organic, Non-GMO, Open Pollinated, Heirloom, USA Origin

Purely Organic Products LLC

✓Allium Cepa: These finest quality, non-GMO, USDA Organic Walla Walla Onion seeds produce 4-5 inch onions famous for their succulent, sweet flavor. Walla Walla Onions taste superb in all applications; and store well.
✓Get a Head Start on the Season: Onion seed may be started indoors, in small flats, 10-12 weeks prior to your last frost date. Transplant outdoors 4-6 weeks before your last frost date.
✓Freshly Packed: These seeds are packed for the current growing season and will provide high germination rates next year as well.
✓Certified Organic: All Purely Organic Seeds are open pollinated, non-GMO (not genetically modified), heirloom, organic seeds. Each Purely Organic Seed Packet carries the USDA Organic Seal signifying that is has passed rigorous standards and been certified organic by a USDA Accredited agency.
✓Premium Packaging: All seeds from Purely Organic Products are packaged in individually styled packets ideal for gifts, storage or immediate use. Each packet displays the plant variety on the front with instructions and plant facts on the back.

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Yellow Sweet Spanish Onion Seed for Planting - 1 Packet with Instructions to Plant and Grow Long Day Onions in Your Home Vegetable Garden - Non-GMO Heirloom Variety - Survival Garden Seeds

Yellow Sweet Spanish Onion Seed for Planting - 1 Packet with Instructions to Plant and Grow Long Day Onions in Your Home Vegetable Garden - Non-GMO Heirloom Variety - Survival Garden Seeds

SURVIVAL GARDEN SEEDS

✓Vigorous and Adaptable - Yellow Sweet Spanish Onion seeds mature into sturdy biennial plants with abundant yields. Known for their adaptability, these onions are ideal for both container and ground gardens. They are a top choice for those seeking high yields from a resilient and reliable onion variety.
✓Culinary Delight - Yellow Sweet Spanish Onions are recognized for their sweet, mild flavor, making them a very versatile veg to grow. These onions are traditionally used in a variety of dishes ranging from salads to hearty roasts, adding a delightfully sweet note to your home-cooked meals.
✓Sustainable Living - Growing your own Yellow Sweet Spanish Onions is a step towards a sustainable, self-sufficient lifestyle. Homegrown sweet onions are a delight whether eaten fresh, chopped and frozen or dried for long term food supplies.
✓The Info You Need to Grow - The seeds are packed in a beautiful paper packet with instructions for successful and easy growing in your home garden. Each package includes tips for saving seeds after harvest.
✓Small American Family-Owned Business - We’re committed to providing fresh, high-quality sweet onion seeds for you to plant now or store for future growing seasons. Our non-GMO, open-pollinated seeds ensure top germination rates.

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25% Discount

Back to the Roots 100% Organic Seed Packet - Onion 'Evergreen Bunching'

Back to the Roots 100% Organic Seed Packet - Onion 'Evergreen Bunching'

Back to the Roots

✓ORGANIC & NON-GMO: Elevate your culinary creations with Back to the Roots Onion 'Evergreen Bunching' Seeds. USDA certified organic and non-GMO, these seeds ensure pure, untainted flavors for your warm-weather herb garden. #GrowOneGif
✓MULTIPURPOSE GROWING: Enjoy the versatility of these onions - cultivate mature bulbs or relish the flavorful green tops. An essential in global vegetable gardening, these onions contribute to a nutritious, homegrown diet.
✓OPTIMAL HARVEST INDICATOR: Watch as green tops drop down when onions are ready for harvest. Ensure peak freshness by harvesting when tops are 80–100% broken down. Follow our simple guidelines for a bountiful and satisfying crop.
✓STORE WITH EASE: After harvest, store your onions in a cool, dry place to preserve their quality. Back to the Roots brings you a dependable and straightforward solution for keeping your homegrown produce fresh and ready for use.
✓100% GUARANTEED TO GROW: If you are not satisfied or have any issues, just shoot us a note and our dedicacted customer support team will make sure we get you growing or send you a refund/replacement.

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