Heirloom Seeds
Utah Yellow Sweet Spanish Onion Seeds – Non-GMO Heirloom
by Organo Republic · United States
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Utah Yellow Sweet Spanish is a classic American storage onion prized for producing large, globe-shaped bulbs with mild, sweet flesh. These heirloom Allium cepa onion seeds grow dependable 4- to 6-inch bulbs with golden-brown skin that keep well through
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winter. A long-day variety, it is well suited to northern and mid-latitude gardens where summer days run long. Who it's for Ideal for home gardeners in northern and central U.S. regions who want a large, sweet, all-purpose onion for slicing, cooking, and cool-cellar storage. How & when to plant Start onion seeds indoors 8–10 weeks before your last frost, or direct sow as soon as the soil can be worked. Sow 1/4 inch deep and thin seedlings to 3–4 inches apart in rows 12–18 inches apart. Give full sun (6+ hours) and steady moisture in loose, fertile soil. As a long-day type it performs best in USDA zones 3–7. Harvest Bulbs mature in roughly 110–120 days. Harvest when the tops yellow and fall over; lift the bulbs, cure them in a dry, airy spot for 2–3 weeks, then store the necks-dry bulbs in a cool, dark place. Benefits & uses The sweet, mild flavor makes these onions excellent raw in salads and sandwiches, and they caramelize beautifully for soups, roasts, and grilled dishes. Their firm bulbs and good keeping quality make them a reliable staple for the winter kitchen. Growing guide: New to this variety? Read our full guide, How to Grow Yellow Sweet Spanish Onions From Seed , for step by step sowing, spacing, and harvest tips.