{"product_id":"blanco-duro-onion-seeds-50-heirloom-white-storage-onion-seeds-for-planting","title":"Blanco Duro Onion Seeds – 50 Heirloom White Storage Onion Seeds for Planting","description":"\u003cp\u003eBlanco Duro is a classic heirloom white onion prized for its firm, dense bulbs and excellent storage quality. These white onions produce uniform, globe-shaped bulbs with crisp, mild-flavored flesh that is perfect for fresh slicing, cooking, and pickling. As a storage onion, Blanco Duro is an excellent choice for gardeners who want to grow a reliable crop that keeps well after harvest.\u003c\/p\u003e\u003cp\u003eEasy to grow from seed, Blanco Duro performs well in full sun and well-drained soil. Whether you are planting a vegetable garden, raised bed, or container, these onion seeds offer a rewarding harvest of homegrown white onions.\u003c\/p\u003e\u003ch2\u003ePlant Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHeirloom white storage onion variety\u003c\/li\u003e\n\u003cli\u003eProduces firm, globe-shaped bulbs\u003c\/li\u003e\n\u003cli\u003eMild, crisp flavor ideal for fresh use and cooking\u003c\/li\u003e\n\u003cli\u003eExcellent storage quality for long-term keeping\u003c\/li\u003e\n\u003cli\u003eGrows well in full sun and well-drained soil\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Requirements:\u003c\/strong\u003e Moderate; keep soil evenly moist\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrowth Habit:\u003c\/strong\u003e Upright, bulb-forming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUSDA Hardiness Zones:\u003c\/strong\u003e 3-9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMature Height:\u003c\/strong\u003e 18-24 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpacing:\u003c\/strong\u003e 4-6 inches apart\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003ePlanting \u0026amp; Care\u003c\/h2\u003e\u003cp\u003eSow Blanco Duro onion seeds indoors 8-10 weeks before the last frost, or direct sow outdoors in early spring once the soil can be worked. Plant seeds about 1\/4 inch deep and keep the soil consistently moist until germination. Thin seedlings to 4-6 inches apart to allow room for bulb development.\u003c\/p\u003e\u003cp\u003eOnions require consistent moisture during the growing season but should be watered less as bulbs mature to encourage proper curing. Stop watering when tops begin to yellow and fall over. Harvest bulbs when necks are dry and tops have browned, then cure in a warm, dry, well-ventilated area before storing.\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":67862008365366,"sku":"FSG-146","price":11.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/4884\/8694\/files\/il_fullxfull.7616572570_90cz.jpg?v=1793267718","url":"https:\/\/blakesflora.com\/products\/blanco-duro-onion-seeds-50-heirloom-white-storage-onion-seeds-for-planting","provider":"Blake's Flora \u0026 Soil","version":"1.0","type":"link"}