Best Sweet Onion Bulbs For Planting for Different Gardens

#1 · Best Overall

1. TomorrowSeeds Candy Onion Sets

Best for: Sweet onion harvests.

Why it ranks #1: Explicitly described as super sweet and Vidalia-type, these half-pound intermediate-day, day-neutral sets suit fresh eating, cooking, and grilling.

Vidalia-type Candy onion sets bring a specifically mild, sweet profile to this TomorrowSeeds planting pack, with the listing describing large onions for fresh eating, cooking, and grilling. The sets are also described as maturing quickly, giving home gardeners options for using onions at different stages.

The Candy variety is identified as Vidalia-type and yellow Granex, which gives shoppers a named sweet-onion direction rather than a general assortment. The listing says the sets can provide tasty green onions early, then storage onions when cured, connecting early picking with later keeping. Starting indoors is suggested for an earlier harvest, while the claimed quick maturity may suit gardeners seeking an earlier crop. Set sizes are variable, so individual bulbs are not uniform.

Skip it if you need uniform-sized sets for a consistent planting; this pack explicitly has variable set sizes.

This suits gardeners prioritizing a mild, sweet yellow onion for fresh eating or grilling, with green onions early and cured onions for storage later. Consider the variable bulb sizes if you want a uniform planting pattern.

Listed on Amazon as: Super Sweet Candy Onion Sets (Bulbs) Seeds – 1/2 Pound – Variable Set Sizes – for 2026 Planting Gardening Noon Intermediate Day Neutral Yellow Granex Vidalia Type Onions Grow Your Own

#2 · Broad Climate Range

2. Starting Gardens Candy Sets

Best for: Day-neutral sweet onions.

Why it ranks #2: These 12-ounce, day-neutral Candy sets are described as growable from the far north to the deep south, with thick, succulent yellow flesh.

A mid-day, day-neutral Candy onion variety is the defining feature of this Starting Gardens pack, which the listing says can grow from the far north to the deep south. That broad regional description makes it relevant to gardeners seeking sweet yellow onions across varied latitudes.

The listing describes huge yellow onions with thick, succulent flesh and a flavor that is both sharp and sweet, giving buyers a specific texture and taste profile for cooking. Its mid-day or day-neutral classification is paired with the stated far-north-to-deep-south growing range, which helps gardeners assess regional suitability. Full sun and moist, well-drained soil are the supplied growing requirements, so site selection should account for both light and drainage.

Skip it if you cannot provide full sun and moist, well-drained soil for the planting site.

This fits gardeners seeking Candy-type yellow onions and a day-neutral option across a broad stated latitude range. Choose a site with full sun and moist, well-drained soil to match the supplied growing requirements.

Listed on Amazon as: Onion Sets, Super Sweet Onions, 12 Ounce Pack

#3 · Large Bulb Potential

3. Simply Seed Sweet Yellow Bulbs

• Material Feature: GMO Free
• Material Features: GMO Free

Best for: Large yellow storage onions.

Why it ranks #3: The listing describes sweet yellow onions weighing up to one pound and storage for up to six months, making them a strong choice for larger bulbs.

Sweet yellow bulbs listed at up to one pound each give this Simply Seed pack a clear focus on substantial, flavorful onions for cooking and fresh meals. The listing also describes storage potential of up to six months, useful for gardeners planning to keep part of a harvest beyond picking.

The product is identified as naturally grown, non-GMO, and American-raised, while its high-germination-rate special feature is listed as a product specification. The description connects heavy yields and bulbs weighing up to one pound with useful volume for cooking, sandwiches, and salsa. Its stated storage life of up to six months supports keeping harvested onions for later use. The pack contains 60–80 bulbs, giving buyers a stated range for planning planting quantity.

Skip it if you want red and white varieties alongside yellow; TomorrowSeeds 3 Colors Mix Onion Sets include all three colors.

Pick this Simply Seed pack if large sweet yellow onions and several months of stated storage are central to your garden plan. It is a focused yellow-onion option, not a color mix for varied harvests.

Listed on Amazon as: Simply SeedTM – Sweet Yellow Onion Bulbs – Naturally Grown – Non GMO – Grow Anywhere – American Raised

#4 · Sweet Red Option

4. Simply Seed Sweet Red Bulbs

Best for: Red onions for fresh meals.

Why it ranks #4: These one-pound-pack red onion sets are described as semi-sweet, crisp, and suitable for salads, with storage potential of six to eight months.

Semi-sweet red onion sets with purplish-red skin and white flesh tinged red give this Simply Seed pack a distinct salad-ready identity. The listing describes crisp, globe-shaped bulbs and storage of six to eight months, balancing fresh-use appeal with a longer keeping window.

The red bulbs are described as crisp and delicious, with salads and sandwiches specifically named among their uses, so the variety offers a clear fresh-eating direction. Its globe shape and red-toned skin distinguish the harvest visually, while the stated six-to-eight-month storage potential offers a way to keep onions beyond immediate meals. The product is listed as American-raised and naturally grown, and the pack title specifies one pound for planning quantity.

Skip it if you want yellow and white bulbs in the same pack; Simply Seed Sweet Onion Bulb Mix includes yellow, red, and white.

Choose this Simply Seed option if red onions for salads and sandwiches are the priority and you want stated storage potential as well. It is a focused red selection, not a multicolor bulb mix.

Listed on Amazon as: Simply SeedTM – Sweet Red Onion Bulbs – 1LB – Naturally Grown – Non GMO – Grow Anywhere – American Raised

#5 · Mixed Color Pack

5. Simply Seed Sweet Onion Mix

• Material Feature: GMO Free
• Material Features: GMO Free

Best for: Mixed-color bulb planting.

Why it ranks #5: The one-pound pack includes mixed yellow, red, and white sweet onions, and the description lists raw, grilled, roasted, and pickled uses.

A one-pound mix of yellow, red, and white sweet onion bulbs gives this Simply Seed pack three listed colors in one purchase. The product also describes bulbs reaching around one pound and storage potential of six to eight months, suiting gardeners planning varied meals and a kept harvest.

The mixed yellow, red, and white listing gives gardeners a broader color selection than a single-color pack, while the description names raw salads, sandwiches, grilling, roasting, and pickling as uses. Those meal options make the mix relevant for cooks who want flexibility after harvest. The one-pound package quantity is specified, and the product listing gives a 60–80 bulb range. Its stated six-to-eight-month storage potential supports keeping onions for later use.

Skip it if you need an exact set count for bed spacing; this pack lists a range of 60–80 bulbs.

This Simply Seed mix suits gardeners wanting multiple onion colors and varied cooking options, with stated storage potential for later use. Plan around the listed 60–80 bulb range rather than an exact count.

Listed on Amazon as: Sweet Onion Bulb Mix – 1LB – Ready for Spring Planting – Grow Anywhere – American Raised – Non GMO

#6

6. Stargazer Yellow Stuttgarter Sets

Best for: Reliable yellow set planting.

Why it ranks #6: These eight-ounce, USA-grown, non-GMO yellow sets are described as mildly sweet and intermediate-day, with keeping qualities suited to long-term storage.

Hand-sorted, USA-grown Stuttgarter bulbs are the practical distinction of this Stargazer Perennials pack, with planting instructions included to guide setup. The intermediate-day variety is described as dependable and mildly sweet, giving gardeners a named yellow onion for cooking, salads, fresh eating, and storage.

The 8-ounce pack contains yellow Stuttgarter sets, and the listing describes sets as more reliable than seeds or transplants with excellent germination rates. Hand-sorting before packing is stated to support viability, while included planting and growing instructions can help gardeners follow a guided setup. The intermediate-day classification identifies the variety type, and its keeping qualities make it relevant to anyone who wants to store part of the harvest rather than use every onion fresh.

Skip it if you need more than an 8-ounce pack; Starting Gardens Onion Sets, Super Sweet Onions provide a listed 12-ounce pack.

Choose Stargazer Perennials if you want named yellow Stuttgarter sets, included guidance, and onions described as suitable for fresh use and long-term storage. The 8-ounce quantity may not suit a larger planting.

Listed on Amazon as: Yellow Onion Sets for Planting – Non-GMO Stuttgarter Bulbs, 8oz, USA Grown – Stargazer Perennials

#7

7. TomorrowSeeds Karmen Red Sets

• Material Feature: GMO Free
• Material Features: GMO Free

Best for: Mild red salad onions.

Why it ranks #7: The half-pound Karmen sets are described as sweet and mild, with deep-red onions suited to salads and cooking and storage after harvest.

Karmen Red sets are described as deep red with a sweet, mild taste, making this TomorrowSeeds pack a targeted option for salads and varied dishes. The listing also emphasizes storage after harvest, so the bulbs are presented for both fresh meals and extended use.

The deep-red color and mild flavor connect directly to salad and cooking uses named in the listing, while the storage claim supports keeping harvested onions for later dishes. The pack is a half-pound of Karmen Red sets with variable set sizes, and the product is described as easy to plant and grow, including for beginners. Its intermediate-day designation gives buyers a variety classification to consider when planning where and when to plant.

Skip it if you need uniform bulb sizes for a consistent planting; this pack lists variable set sizes.

This suits gardeners looking for mild red onions for salads and cooking, with storage use after harvest also described. Account for the variable set sizes when planning a tidy, uniform planting.

Listed on Amazon as: Karmen Red Onion Sets (Bulbs) Seeds – 1/2 Pound – Variable Set Sizes – for 2026 Planting Gardening Sweet Excellent Storage Noon Intermediate Day Neutral Onions Grow Your Own Home Farm

#8

8. TomorrowSeeds Spanish Globe Sets

• Material Feature: GMO Free
• Material Features: GMO Free

Best for: Long-day globe onions.

Why it ranks #8: These half-pound golden Spanish Globe sets are described as mild-flavored and sweet, but their listed long-day classification narrows regional fit.

Spanish Globe sets are identified as long-day onions with classic globe-shaped bulbs and a mild flavor, giving this TomorrowSeeds pack a specific variety and shape to plan around. The listing also describes early green onions followed by later storage onions for a flexible harvest sequence.

The globe shape and mild flavor are useful markers for gardeners choosing onions for cooking and salads, while the listing also names storage as a use. Its long-day classification is an important planning detail for matching the variety to a growing region. The product description says the sets establish quickly and can provide green onions early, then storage onions later in summer. Easy growing and suitability for various climates are also stated, alongside a half-pound pack with variable set sizes.

Skip it if you need a day-neutral onion; Starting Gardens Onion Sets, Super Sweet Onions are listed as mid-day or day-neutral.

This is a fit for gardeners seeking mild, globe-shaped onions and a long-day variety, with early greens and later storage use described. Check that long-day classification against your growing-region needs.

Listed on Amazon as: Spanish Globe Onion Sets (Bulbs) Seeds – 1/2 Pound – Variable Set Sizes – for 2026 Planting Gardening Sweet Golden Excellent Storage Long Day Onions Grow Your Own Home Farm Patio

#9

9. TomorrowSeeds Yellow Stuttgarter Sets

• Material Feature: GMO Free
• Material Features: GMO Free

Best for: Yellow onions for storage.

Why it ranks #9: These half-pound yellow sets emphasize classic flavor and excellent storage rather than sweetness, though their intermediate-day listing and easy-growing description are useful.

Yellow Stuttgarter sets pair a classic, firm onion profile with the listing's emphasis on long-term storage, making this TomorrowSeeds pack a focused choice for cooks who preserve or keep harvests. Its intermediate-day classification and easy-growing description add useful planning cues for home gardeners.

The listing describes firm, flavorful yellow onions for cooking, roasting, and preserving, so the harvest can serve both immediate meals and prepared stores. Excellent long-term storage is a stated feature, which supports keeping onions after harvest rather than relying only on fresh use. The intermediate-day label helps identify the variety type, while the product is described as suitable for a variety of climates and easy to grow. The half-pound pack lists variable set sizes.

Skip it if you require matching set sizes across the bed; the listing specifies variable sizes.

Choose this TomorrowSeeds pack for a yellow Stuttgarter planting aimed at cooking, preserving, and storage. Its varied set sizes are worth accounting for when planning spacing or seeking a uniform-looking planting.

Listed on Amazon as: Yellow Stuttgarter Onion Sets (Bulbs) Seeds – 1/2 Pound – Variable Set Sizes – for 2026 Planting Sweet Excellent Storage Noon Intermediate Day Neutral Gardening Onions Grow Your Own

#10

10. TomorrowSeeds Three-Color Mix

• Material Feature: GMO Free
• Material Features: GMO Free

Best for: Three-color kitchen garden.

Why it ranks #10: This half-pound pack combines Yellow Stuttgarter, Red Karmen, and Snowball White, but its focus is variety rather than a clearly specified sweet onion.

A mix of Yellow Stuttgarter, Red Karmen, and Snowball White bulbs gives this TomorrowSeeds pack three onion varieties in one planting. The combination can bring early green onions and later storage onions, while adding yellow, red, and white choices for fresh meals and keeping.

The three-variety mix supports different kitchen uses: the listing describes green onions early, followed by storage onions later, and identifies fresh use as well as storage. That makes one pack relevant to gardeners who want a succession of onion uses rather than a single-color harvest. Its approximately half-pound size is listed as about 50 sets, and the product is described as easy to grow for beginners. GMO-free is also specified.

Skip it if you want only yellow onions throughout the bed; TomorrowSeeds Yellow Stuttgarter Onion Sets offer a single named variety.

Choose this TomorrowSeeds mix if you want several onion colors and both early green onions and later storage onions from one pack. Its variety mix is less suitable when a uniform, single-variety planting is your priority.

Listed on Amazon as: 3 Colors Mix Onion Sets (Bulbs) – 1/2 Pound (~50 Sets) – Fresh Crop, Stored Cold, for 2026 Planting Yellow, Red, White, Excellent Storage Noon Intermediate Intermediate Day