

Hero image 0 of Organic Utah Yellow Sweet Spanish Onion Seed 4 Oz ~28,000 Seeds – Long Day, Non-GMO, Heirloom, Mild & Sweet – 110-115 Days – Open-Pollinated Bulbing Onion – Allium cepa – USDA Recommended, 0 of 7
Organic Utah Yellow Sweet Spanish Onion Seed 4 Oz ~28,000 Seeds – Long Day, Non-GMO, Heirloom, Mild & Sweet – 110-115 Days – Open-Pollinated Bulbing Onion – Allium cepa – USDA Recommended
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Organic Utah Yellow Sweet Spanish Onion Seed 4 Oz ~28,000 Seeds – Long Day, Non-GMO, Heirloom, Mild & Sweet – 110-115 Days – Open-Pollinated Bulbing Onion – Allium cepa – USDA RecommendedOrganic Utah Yellow Sweet Spanish Onion Seed 4 Oz 28 000 Seeds Long Day Non GMO Heirloom Mild Sweet 110 115 Days Open Pollinated Bulbing Onion Allium
Size:4 Oz-Out of stock
Key item features
- 🧅 Long-Day Bulbing Variety – Best for northern climates; 110–115 days to maturity. Recommended by Utah State University and state vegetable of Utah.
- 🌱 Organic, Non-GMO & Heirloom – Open-pollinated seed ideal for home gardens, greenhouses, raised beds, and containers.
- ☀️ Cold Hardy, Full Sun – Grows 14–24" tall in cool, loose, sandy soil. Thrives in well-drained beds with nitrogen-rich compost.
- 🐞 Mild & Sweet Flavor – Large yellow bulbs up to 6" across. Great raw, grilled, or cooked in chili, stews, or marinara.
- 💧 Easy to Grow & Harvest – Sow indoors or direct. Cure outdoors in sun for 2 days before storing. Short seed shelf life—store cool & dry.
Specs
- Plant nameOnion
- Plant categoryVegetables
- Light needsFull Sun
- Usda hardiness zone2, 3, 4, 5, 6, 7, 8, 9
- Human food producing seeds, plants & treesY
- BrandSustainable Seed Company
Price when purchased online
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About this item
Product details
Organic Utah Yellow Sweet Spanish Onion is a long-day, open-pollinated heirloom onion known for its large, sweet, and mild-flavored yellow bulbs. Maturing in 110–115 days, this cold-tolerant variety thrives in cooler, northern regions and can be direct sown or started indoors 8–10 weeks before your last frost. Ideal for raised beds, greenhouses, or garden plots, it reaches 14–24 inches tall and prefers well-drained, sandy soil enriched with nitrogen. This Utah State-recommended cultivar produces bulbs up to 6" wide and is excellent for slicing, grilling, canning, or using fresh. Onions are ready to harvest once greens yellow and fall. Cure in sun 2 days before storage. Note: Onion seed has a short shelf life—store in a cool, dry place.
- 🧅 Long-Day Bulbing Variety – Best for northern climates; 110–115 days to maturity. Recommended by Utah State University and state vegetable of Utah.
- 🌱 Organic, Non-GMO & Heirloom – Open-pollinated seed ideal for home gardens, greenhouses, raised beds, and containers.
- ☀️ Cold Hardy, Full Sun – Grows 14–24" tall in cool, loose, sandy soil. Thrives in well-drained beds with nitrogen-rich compost.
- 🐞 Mild & Sweet Flavor – Large yellow bulbs up to 6" across. Great raw, grilled, or cooked in chili, stews, or marinara.
- 💧 Easy to Grow & Harvest – Sow indoors or direct. Cure outdoors in sun for 2 days before storing. Short seed shelf life—store cool & dry.
info:
We aim to show you accurate product information. Manufacturers, suppliers and others provide what you see here, and we have not verified it.
Specifications
Plant name
Onion
Plant category
Vegetables
Light needs
Full Sun
Usda hardiness zone
2, 3, 4, 5, 6, 7, 8, 9
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