{"product_id":"onions","title":"T-448 (F1) Onion Seed","description":"\u003cp\u003e\u003cimg class=\"alignnone wp-image-1403 size-large\" src=\"https:\/\/kakaseeds.com\/wp-content\/uploads\/2026\/06\/%E7%99%BD%E6%B4%8B%E8%91%B1%E7%94%9F%E9%95%BF%E6%B8%A9%E5%BA%A61-1024x351.png\" alt=\"\" width=\"1024\" height=\"351\"\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eLatin Name\u003cbr\u003e\nAllium cepa\u003c\/h4\u003e\n\u003ch4\u003eDays To Maturity\u003cbr\u003e\n95 spring sown approx 265 fall sown in the north\u003c\/h4\u003e\n\u003ch4\u003eHybrid Status\u003cbr\u003e\nHybrid (F1)\u003c\/h4\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eSCIENTIFIC NAME:\u003c\/h2\u003e\n\u003cp\u003eAllium cepa\u003c\/p\u003e\n\u003ch2\u003eCULTURE:\u003c\/h2\u003e\n\u003cp\u003eOnions require full sun and fertile, well-drained soil with a pH of 6.0–7.0. Sandy loam soils are ideal; in heavier soils, use raised beds or raised rows to promote soil drainage.\u003c\/p\u003e\n\u003ch2\u003eDAY LENGTH:\u003c\/h2\u003e\n\u003cp\u003eOnion bulbing is triggered by day length, and maximum day length during the growing season increases from south to north. Short-day onions are grown at lower latitudes in the South, while intermediate and long-day onions are grown at higher latitudes. Refer to \"Adaptation\" in each variety description for details.\u003c\/p\u003e\n\u003ch2\u003eDAYS TO MATURITY:\u003c\/h2\u003e\n\u003cp\u003eFrom direct seeding; subtract 10–15 days for days to maturity from transplant.\u003c\/p\u003e\n\u003ch2\u003eTRANSPLANTING:\u003c\/h2\u003e\n\u003cp\u003eIn long- and intermediate-day areas, sow indoors 6–8 weeks before last frost date. Sow 128-cell trays, 1 seed\/cell, and cover with 1\/4\" soil. Transplant 4\" apart in rows 12–18\" apart. Unruly tops may be clipped to 5\" at time of transplant.\u003c\/p\u003e\n\u003ch2\u003eDIRECT SEEDING:\u003c\/h2\u003e\n\u003cp\u003eIn April or early May, or as soon as the soil can be prepared in early spring, sow in a 2\" wide band, about 2 seeds\/in., 1\/4– 1\/2\" deep, rows 12–18\" apart. Thin to 1 1\/2–2\" apart for highest yields in fertile soil. Thin to 3-4\" apart for larger onions.\u003c\/p\u003e\n\u003ch2\u003eAVG. DIRECT SEEDING RATE:\u003c\/h2\u003e\n\u003cp\u003e1 oz.\/25', 1M\/50', 5M\/250', 25M\/1,250', 580M\/acre at 20 seeds\/ft., in rows 18\" apart.\u003c\/p\u003e\n\u003ch2\u003eCROP MAINTENANCE:\u003c\/h2\u003e\n\u003cp\u003eKeep onions well weeded with shallow cultivation. Onions are shallow-rooted and grow best with at least 1\" per week of rain or irrigation, especially during the bulbing phase.\u003c\/p\u003e\n\u003ch2\u003eDISEASE:\u003c\/h2\u003e\n\u003cp\u003eAdequate air circulation and crop rotation aids in reducing the risk of foliar disease. All Johnny's onion plants are tested and certified free from the presence of white rot and parasitic nematodes.\u003c\/p\u003e\n\u003ch2\u003eHARVEST:\u003c\/h2\u003e\n\u003cp\u003eWhen necks become soft and 50% of tops are falling over, pull and cure in well-ventilated space out of direct sunlight (to prevent greening) or sun-cure in field for 2–7 dry days before moving to dry location. Cure until tops are completely dried; about 2 weeks.\u003c\/p\u003e\n\u003ch2\u003eSTORAGE:\u003c\/h2\u003e\n\u003cp\u003eWhen dry, clip off tops and roots and store in onion bags or shallow boxes at near freezing and 65–70% humidity.\u003c\/p\u003e\n\u003ch2\u003eTRANSPLANTS:\u003c\/h2\u003e\n\u003cp\u003eAvg. 1 oz.\/4,900 plants, 1 lb.\/78,750.\u003c\/p\u003e\n\u003ch2\u003eSIZED SEEDS:\u003c\/h2\u003e\n\u003cp\u003eStandard on all varieties.\u003c\/p\u003e\n\u003ch2\u003eSEEDS\/LB.:\u003c\/h2\u003e\n\u003cp\u003e96,900–127,700 (avg. 112,000).\u003c\/p\u003e\n\u003ch2\u003ePACKET:\u003c\/h2\u003e\n\u003cp\u003e250 seeds, sows 12' or makes 140 plants.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eKaKaSeeds is committed to your success, every step of the way.\u003c\/p\u003e\n\u003cp\u003eWe want you, our customer, to be 100% satisfied with all of our seeds, tools, and supplies.\u003c\/p\u003e\n\u003cp\u003eIf anything you purchase from us proves unsatisfactory, we will either replace the item or refund the purchase price.\u003c\/p\u003e\n\n\n\u003cdiv class=\"description collapsible-xs \"\u003e\n\u003cp id=\"collapsible-description-1\"\u003e\u003cstrong\u003earliest long-day overwintering onion for the North.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"details collapsible-xs\"\u003e\n\u003cp id=\"collapsible-details-1\"\u003e\u003cstrong\u003eOur trials have shown T-448 to be larger and about a week earlier than Bridger when overwintered. Bulbs are also more rounded in shape. Not as early or as large as Bridger when spring sown, however. Exceptional bolt tolerance when overwintered.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSpecs:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003ePacket: 250 seeds\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAvg. 114,900 seeds\/lb\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n","brand":"kkseeds","offers":[{"title":"Packet","offer_id":53742882881850,"sku":null,"price":6.85,"currency_code":"USD","in_stock":true},{"title":"1,000 Seeds","offer_id":53742882914618,"sku":null,"price":19.0,"currency_code":"USD","in_stock":true},{"title":"5,000 Seeds","offer_id":53742882947386,"sku":null,"price":59.0,"currency_code":"USD","in_stock":true},{"title":"25,000 Seeds","offer_id":53742882980154,"sku":null,"price":226.0,"currency_code":"USD","in_stock":true},{"title":"100,000 Seeds","offer_id":53742883012922,"sku":null,"price":754.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1010\/9707\/9098\/files\/1397__E7_99_BD_E6_B4_8B_E8_91_B11.png?v=1784199881","url":"https:\/\/kkseed.xyz\/products\/onions","provider":"kkseeds","version":"1.0","type":"link"}