{"product_id":"blanco-duro-onion-seeds-white-storage-onion-heirloom-50-seeds","title":"Blanco Duro Onion Seeds – White Storage Onion Heirloom – 50 Seeds","description":"\u003cp\u003eBlanco Duro is a classic white storage onion prized for its firm, crisp bulbs and excellent keeping quality. This heirloom variety produces uniform, globe-shaped onions with thin, papery white skin and mild, sweet flavor that becomes more pungent as the bulbs mature. It is a reliable choice for home gardeners who want a steady supply of onions for fresh use and long-term storage.\u003c\/p\u003e\u003cp\u003eWhether you grow them for salads, sandwiches, soups, or caramelizing, Blanco Duro onions adapt well to a range of culinary uses. Their sturdy bulbs store well in a cool, dry place, making them a practical addition to the vegetable garden and pantry.\u003c\/p\u003e\u003ch2\u003ePlant Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHeirloom white storage onion with firm, crisp bulbs\u003c\/li\u003e\n\u003cli\u003eMild, sweet flavor that intensifies with maturity\u003c\/li\u003e\n\u003cli\u003eExcellent keeping quality for long-term storage\u003c\/li\u003e\n\u003cli\u003eUniform globe-shaped bulbs with thin white skin\u003c\/li\u003e\n\u003cli\u003eVersatile for fresh eating and cooked dishes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eGrowing Information\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBotanical Name:\u003c\/strong\u003e Allium cepa\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlant Type:\u003c\/strong\u003e Biennial grown as annual\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSunlight:\u003c\/strong\u003e Full sun\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoil:\u003c\/strong\u003e Well-drained, fertile soil rich in organic matter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSDA Zones:\u003c\/strong\u003e 3-10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrowth Habit:\u003c\/strong\u003e Upright, bulb-forming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBloom Season:\u003c\/strong\u003e Not typically grown for bloom\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMature Height:\u003c\/strong\u003e 12-24 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGermination:\u003c\/strong\u003e 7-14 days at 65-75°F\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePlanting \u0026amp; Care\u003c\/h2\u003e\u003cp\u003eStart Blanco Duro onion seeds indoors 8-10 weeks before the last frost date. Sow seeds 1\/4 inch deep in a sterile seed-starting mix, keeping the soil consistently moist but not waterlogged. Provide bright light and maintain temperatures around 65-75°F for reliable germination. Harden off seedlings before transplanting outdoors after the last frost.\u003c\/p\u003e\u003cp\u003ePlant seedlings 4-6 inches apart in rows spaced 12-18 inches apart. Keep the area weed-free and water regularly, especially during dry spells. Stop watering when the tops begin to yellow and fall over, signaling maturity. Harvest bulbs and cure them in a warm, dry, well-ventilated area before storing in a cool, dark place.\u003c\/p\u003e\u003ch2\u003eWhat's Included\u003c\/h2\u003e\u003cp\u003e50 Blanco Duro Onion seeds.\u003c\/p\u003e","brand":"Blake's Flora \u0026 Soil","offers":[{"title":"Default Title","offer_id":67726878671158,"sku":"BOTAN4-039","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/4884\/8694\/files\/il_fullxfull.7658270986_e085.jpg?v=1791980020","url":"https:\/\/blakesflora.com\/products\/blanco-duro-onion-seeds-white-storage-onion-heirloom-50-seeds","provider":"Blake's Flora \u0026 Soil","version":"1.0","type":"link"}