Fall is a prime time for planting short-day onion bulbs that will form bulbs quickly as daylight shortens. This guide highlights top onion sets ideal for short-day varieties, with an emphasis on ease of growing, flavor versatility, and storage potential. Each option is suitable for home gardens and beginner gardeners alike, providing reliable germination and vigorous establishment in cool fall conditions. Below, you’ll find curated selections that cover colorful mixes, sweet candy onions, and classic Yellow Stuttgarter types, all aimed at delivering fresh-onion harvests by late spring.
Summary table of selected products:
| Product | Brand | Notes | Onion Type |
|---|---|---|---|
| TomorrowSeeds – 3 Colors Mix Onion Sets (Bulbs) – 1/2 Pound | TomorrowSeeds | Vibrant red, white, yellow mix; easy to grow | Short day mix |
| Mixed Red, White, and Yellow Onion Sets 1 Pound | Stargazer Perennials | Non-GMO, USA-grown; 16 oz; plants 80-100 sets | Day-neutral/short-day combination |
| TomorrowSeeds – Super Sweet Candy Onion Sets – 1/2 Pound | TomorrowSeeds | Large, sweet onions for fresh eating | Short/neutral sweet types |
| TomorrowSeeds – 3 Colors Mix Onion Sets – 25+ Count | TomorrowSeeds | Vibrant mix; good storage potential | Short-day mix |
| TomorrowSeeds – Yellow Stuttgarter Onion Sets – 25+ Count | TomorrowSeeds | Classic yellow, firm and flavorful | Short-day variety |
TomorrowSeeds 3 Colors Mix Onion Sets — 1/2 Pound
The TomorrowSeeds 3 Colors Mix presents a balanced trio of red, white, and yellow onions, ideal for fall planting in regions with shorter autumn days. This half-pound pack provides a compact assortment that helps gardeners diversify flavor profiles in the kitchen. The mix is marketed as easy to grow, making it suitable for first-time gardeners who want quick results. The color variety also supports visually appealing garden beds and can adapt to a range of soil types with standard onion-planting practices. For fall sowing, ensure beds receive full sun and well-drained soil to maximize germination and bulb formation as daylight shortens.
Mixed Red, White, and Yellow Onion Sets — 1 Pound
This 1-pound onion set mix from Stargazer Perennials combines red, white, and yellow varieties, offering an all-in-one option for fall plantings. The mix includes non-GMO bulbs grown in the USA and comes with how-to-plant tips. The assortment typically yields 80–100 sets per order, depending on bulb size, giving home gardeners flexibility for successive plantings or larger garden beds. Short-day-leaning varieties work well in cooler autumn temperatures, enabling earlier harvests in spring. The pack is designed for gardeners seeking variety plus practical storage and cooking options right from the garden.
TomorrowSeeds Super Sweet Candy Onion Sets — 1/2 Pound
Super Sweet Candy Onion Sets from TomorrowSeeds deliver large, flavorful onions ideal for fresh eating, cooking, or grilling. This half-pound option emphasizes sugar-rich Granex-type varieties commonly used for Vidalia-style onions. The bulbs are noted for their sweetness and crisp texture, often preferred by home cooks for raw preparations, salsas, and roasted dishes. For fall planting, prepare rich, well-drained soil and thin or space according to bulb size recommendations to promote uniform development. This choice suits gardeners prioritizing taste-focused harvests without sacrificing ease of growth.
TomorrowSeeds 3 Colors Mix Onion Sets — 25+ Count
This 25+ count mix provides a broader assortment of red, white, and yellow onions in a single package, designed for fall planting. The mix supports variety in flavor, storage capabilities, and cooking versatility. These sets are described as easy to grow for both beginners and seasoned gardeners, with emphasis on reliable germination and robust early growth. As with any short-day onion variety, provide full sun and well-drained soil, and monitor moisture to prevent bulb splitting and disease during cool autumn weather.
TomorrowSeeds Yellow Stuttgarter Onion Sets — 25+ Count
The Yellow Stuttgarter onion set is a classic option offered by TomorrowSeeds, featuring 25+ bulbs that produce firm, flavorful yellow onions. This short-day variety is well-suited to fall planting and a range of climates. It’s noted for reliable storage, making it a practical choice for households planning long-term use from a single harvest. Gardeners should aim for fertile, well-drained soil and consistent moisture, especially during bulb expansion in the cool autumn period. The variety is known for its versatile culinary applications, from roasting to caramelizing.
Buying Guide: Short Day Onion Sets For Fall Planting
Short-day onion sets are best suited for areas where day length shortens in autumn. When choosing, consider climate, soil quality, storage goals, and intended use (fresh eating versus cooking for longer storage). Key purchase considerations include:
- Daylength suitability: Short-day or day-neutral varieties typically set bulbs with fewer daylight hours, aligning with fall planting in temperate regions.
- Bulb size and count: Larger bulbs may yield bigger onions but require space; compact mixes offer variety in one purchase.
- Storage potential: Choose varieties known for good storage if you plan to keep onions through winter.
- Quality of seed stock: Non-GMO and USA-grown options can reflect farming practices and region compatibility.
- Growing conditions: Ensure well-drained soil, full sun, and consistent moisture; raised beds can improve drainage in rainy falls.
- Disease resistance: Look for resistant or hardy cultivars to reduce risks in cooler autumn soils.
Comparative considerations across the featured products include flavor profile, sweetness level, and culinary versatility. Mixes offer color variety and garden appeal, while single-variety sets like Yellow Stuttgarter emphasize traditional flavor and consistent size. For beginners, pre-mixed sets reduce planning complexity, whereas specialized varieties suit growers aiming for specific culinary outcomes. Always follow the planting depth and spacing recommendations on each product’s label, and tailor watering to prevent bulb rot in damp fall conditions. By aligning choice with local climate and harvest timing, you can maximize both yield and quality of fall-planted short-day onions.