{"product_id":"lettuce-seeds-crisphead-iceberg-organic","title":"Lettuce Seeds - Crisphead - Iceberg (Organic)","description":"\u003cp\u003e70-79 days. \u003cem\u003eLactuca sativa\u003c\/em\u003e. Organic Iceberg Crisphead Lettuce Seeds. Non-GMO, annual, organic, heirloom, open-pollinated. This crop is suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. The classic American salad lettuce, Iceberg forms tight, dense heads of pale green, tightly overlapping leaves with a satisfying crunch and a mild, refreshing flavor. A reliable performer in the cool-season garden, it excels in garden plots, raised beds, and greenhouse production. It holds up well under refrigeration, making it a favorite for home growers who want a ready supply of fresh salad greens. ~30,600 seeds\/oz.\u003c\/p\u003e\n\u003c!--split--\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.trueleafmarket.com\/pages\/the-vegetable-growing-guide-from-true-leaf-market\" target=\"_blank\"\u003e\u003cstrong\u003eDownload Free Vegetable Growing Guide PDF\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c!--attr--\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLatin Name:\u003c\/strong\u003e \u003cem\u003eLactuca sativa\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardiness Zone:\u003c\/strong\u003e Annual in zones 3, 4, 5, 6, 7, 8, 9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDays to Maturity:\u003c\/strong\u003e 70 to 79\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDays to Germination:\u003c\/strong\u003e 7 to 14\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeeding Depth:\u003c\/strong\u003e 0.125 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect Sow:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStart Indoors:\u003c\/strong\u003e Yes, 4-6 weeks before transplanting outdoors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlant Spacing:\u003c\/strong\u003e 12-14 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRow Spacing:\u003c\/strong\u003e 18 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlant Height:\u003c\/strong\u003e 8-12 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlant Width:\u003c\/strong\u003e 10-14 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrowth Habit:\u003c\/strong\u003e Compact\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeer Resistant:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoil Preference:\u003c\/strong\u003e Well-drained, fertile, moisture-retentive soil with a pH of 6.0 to 7.0. Consistent moisture is important; avoid waterlogged conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature Preference:\u003c\/strong\u003e Cooler, 45-75 F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGermination Temperature:\u003c\/strong\u003e 40-75 F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLight Preference:\u003c\/strong\u003e Full Sun\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePests and Diseases:\u003c\/strong\u003e Susceptible to aphids, slugs, and tipburn in hot weather. Prone to bottom rot and downy mildew in poorly drained or humid conditions. Bolts quickly in heat; time plantings to avoid summer peak temperatures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLettuce Color:\u003c\/strong\u003e Pale to medium green outer leaves with a densely blanched, white-green interior head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLettuce Flavor:\u003c\/strong\u003e Mild, lightly sweet, and refreshing with a satisfying crisp crunch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGarden Size:\u003c\/strong\u003e Greenhouse, Garden Plot, Raised Bed, Fields\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClimate Tolerance:\u003c\/strong\u003e Drought\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!--endattr--\u003e\n\u003ch2\u003eGrowing Organic Iceberg Crisphead Lettuce in the Vegetable Garden\u003c\/h2\u003e\n\u003cp\u003eIceberg lettuce is a cool-season crop that performs best when sown in early spring or late summer for a fall harvest. Direct sow seeds 0.125 inch deep as soon as the soil can be worked, or start transplants indoors 4 to 6 weeks before your last frost date and move them outside once nighttime temperatures are consistently above 28 F. Thin or transplant to 12 to 14 inches apart in rows 18 inches apart — adequate spacing is essential for good head development and helps reduce fungal pressure. Lettuce germinates best with soil temperatures between 40 and 75 F; avoid sowing in hot soils above 80 F, as germination will drop sharply.\u003c\/p\u003e\n\u003cp\u003eKeep the soil consistently moist throughout the growing season — shallow roots make lettuce sensitive to drought stress, which can cause tipburn and bitterness. Water at the base of plants rather than overhead to reduce disease pressure. Side-dress with a balanced fertilizer 3 to 4 weeks after transplanting if growth appears slow. In warmer climates, shade cloth rated at 30 to 40 percent can extend the harvest window by several weeks. Mulching around plants helps moderate soil temperature and retain moisture.\u003c\/p\u003e\n\u003ch3\u003eHarvesting Organic Iceberg Crisphead Lettuce\u003c\/h3\u003e\n\u003cp\u003eIceberg lettuce is ready to harvest when the head feels firm and dense to the touch — loose or soft heads need more time. Cut the head at the base with a sharp knife just below the lowest leaves, typically 70 to 79 days after seeding. Harvest in the morning when heads are cool and fully hydrated for the best texture and shelf life. Unwashed heads can be stored in a loosely sealed bag in the refrigerator for up to 2 weeks. Avoid harvesting after extended heat, as heads may be bitter or show signs of early bolting.\u003c\/p\u003e\n\u003ch3\u003eAbout Iceberg Crisphead Lettuce Garden Seeds\u003c\/h3\u003e\n\u003cp\u003eIceberg lettuce has been a staple of the American table since the early 20th century, when refrigerated rail cars made it possible to ship fresh heads coast to coast — packed in ice, which gave the variety its enduring common name.\u003c\/p\u003e\n\u003cp\u003eThe variety belongs to the crisphead class of lettuce, characterized by tightly folded, overlapping leaves that form a dense, ball-shaped head with a crisp texture and high water content.\u003c\/p\u003e\n\u003cp\u003eWhile often overshadowed in culinary circles by more flavorful greens, Iceberg remains one of the top-selling vegetable crops in the United States and the backbone of countless salads, wedge presentations, sandwiches, and burger toppings.\u003c\/p\u003e\n\u003ch3\u003eTips From Our Gardeners\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cp\u003eIf your Iceberg heads are coming in loose instead of tight and firm, the most common culprit is warm soil temperature, not variety failure. Try sowing 3 to 4 weeks earlier in spring, or switch to a fall planting timed so heads mature before your first frost. Cool nights are what trigger Iceberg to close up and head properly — they make all the difference.\u003c\/p\u003e\n\u003ctable width=\"100%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 20.7517%;\"\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto;\" height=\"89\" width=\"89\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2016\/2681\/files\/jerry-sawyer-compressed.jpg?v=1653940293\" alt=\"Jerry Sawyer\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 75.2483%;\"\u003e\u003cem\u003e- Jerry Sawyer, True Leaf Market Writer\u003c\/em\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eOrganic Iceberg Crisphead Lettuce Seeds Per Package:\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e2 g Packet - Approximately 2,160 Seeds\u003c\/li\u003e\n\u003cli\u003e0.25 oz - Bulk Seeds - Approximately 7,650 Seeds\u003c\/li\u003e\n\u003cli\u003e1 oz - Bulk Seeds - Approximately 30,600 Seeds\u003c\/li\u003e\n\u003cli\u003e4 oz - Bulk Seeds - Approximately 122,400 Seeds\u003c\/li\u003e\n\u003cli\u003e1 lb - Wholesale - Approximately 489,600 Seeds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOrganic Iceberg Crisphead Lettuce seeds are available for \u003ca href=\"https:\/\/trueleafmarket.com\/pages\/shipping-information\" target=\"_blank\"\u003e\u003cstrong\u003eFast Free Shipping\u003c\/strong\u003e\u003c\/a\u003e on qualifying orders.\u003c\/p\u003e\n\u003c!--split--\u003e","brand":"Sustainable Seed Company","offers":[{"title":"2 g Packet","offer_id":45125616500851,"sku":"76517","price":3.49,"currency_code":"USD","in_stock":true},{"title":"0.25 oz","offer_id":45125616533619,"sku":"76518","price":5.58,"currency_code":"USD","in_stock":true},{"title":"1 oz","offer_id":45125616566387,"sku":"76519","price":9.85,"currency_code":"USD","in_stock":true},{"title":"4 oz","offer_id":45125616599155,"sku":"76520","price":23.86,"currency_code":"USD","in_stock":true},{"title":"1 lb","offer_id":45125616631923,"sku":"76477","price":71.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2016\/2681\/files\/1777920387_lettuce_crisphead_iceberg_open_comp_9d6241f8-4b5d-4cd6-8aab-4362a901cbf8.jpg?v=1782257103","url":"https:\/\/store.trueleafmarket.com\/products\/lettuce-seeds-crisphead-iceberg-organic","provider":"True Leaf Market","version":"1.0","type":"link"}