{"product_id":"leafy-greens-pac-choi-shanghai-500-non-gmo-heirloom-seeds","title":"Leafy Greens Pac Choi Shanghai 500 Non-GMO, Heirloom Seeds","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(56, 154, 43);\"\u003ePac Choi Shanghai\u003c\/span\u003e\u003c\/strong\u003e is an exceptional heirloom variety prized throughout South China for its superior culinary qualities and reliable performance. This green-stem cultivar features lustrous dark green foliage and notably thick, tender petioles that deliver exceptional tenderness and flavor complexity. One of the most versatile crops you can grow — harvest as microgreens in as little as 15 days, tender baby leaf at 20–30 days, or full-sized heads at 45 days for maximum flexibility throughout the season. Impressive heat tolerance extends harvest windows well into warm weather when other greens have long since bolted.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: rgb(25, 91, 11);\"\u003e\u003cstrong\u003eGermination Rate: 99%. Test Date: 1\/26. TLM.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eWhy Choose Pac Choi Shanghai?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree Harvest Stages:\u003c\/strong\u003e Microgreens at 15 days, baby leaf at 20–30 days, or full heads at 45 days — one planting, three completely different culinary uses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e99% Germination Rate:\u003c\/strong\u003e Exceptional germination reliability — nearly every seed produces a strong, healthy plant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat-Tolerant:\u003c\/strong\u003e Significantly more heat-tolerant than standard bok choy varieties — extends your harvest window deep into warm weather without bolting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThick, Tender Petioles:\u003c\/strong\u003e The hallmark of Shanghai pac choi — thick, juicy green stems that remain tender even at full maturity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Yielding:\u003c\/strong\u003e Abundant production across multiple harvest cycles — cut-and-come-again at the baby leaf stage for continuous harvests.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeirloom \u0026amp; Open-Pollinated:\u003c\/strong\u003e Passed down through generations for at least 75 years — save seeds year after year.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-GMO Seeds:\u003c\/strong\u003e Plants whose DNA has not been altered in ways that do not occur naturally through traditional breeding methods.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePlanting Tips for Success\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSunlight:\u003c\/strong\u003e Full sun to partial shade — 4–6 hours per day. Partial afternoon shade in warm climates reduces bolt risk.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoil:\u003c\/strong\u003e Fertile, well-drained soil with a pH of 6.0–7.0. Amend generously with compost — pac choi is a heavy nitrogen feeder.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlanting:\u003c\/strong\u003e Direct sow ¼ inch deep in early spring or fall. For microgreens, sow densely in trays or beds. Can also start indoors 4–6 weeks before last frost and transplant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpacing:\u003c\/strong\u003e For full heads, thin or transplant to 6–8 inches apart in rows 12 inches apart. For baby leaf, sow more densely and harvest by cutting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWatering:\u003c\/strong\u003e Keep soil consistently moist — pac choi bolts quickly under drought stress. Water at the base to avoid fungal issues on foliage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFertilizing:\u003c\/strong\u003e Side-dress with nitrogen-rich fertilizer every 2–3 weeks to support rapid, lush leaf growth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuccession Sowing:\u003c\/strong\u003e Sow every 2–3 weeks for continuous microgreen and baby leaf harvests throughout the cool season.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHarvesting:\u003c\/strong\u003e For microgreens: cut at soil level at 15 days. For baby leaf: cut outer leaves at 20–30 days. For full heads: cut at base at 45 days when heads are firm and compact.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Choose David’s Garden Seeds®?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVeteran-Owned:\u003c\/strong\u003e Supplying premium seeds since 2009.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGO TEXAN Certified:\u003c\/strong\u003e Supporting local agriculture and communities.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrity Pledge:\u003c\/strong\u003e David’s Garden Seeds has taken the \u003cstrong\u003e\u003cspan style=\"color: rgb(7, 13, 115);\"\u003e\u003ca rel=\"noopener\" title=\"Seed Integrity Pledge\" href=\"https:\/\/www.safeseedpledge.org\/\" style=\"color: rgb(7, 13, 115);\" target=\"_blank\"\u003eSeed Integrity Pledge\u003c\/a\u003e\u003c\/span\u003e\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVegetable Seed License:\u003c\/strong\u003e David’s Garden Seeds® holds a valid Vegetable Seed License, ensuring our seeds meet state and federal quality standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGreat Customer Service:\u003c\/strong\u003e David answers all customer service questions. Usually within a few minutes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCooking Methods\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStir-Fried:\u003c\/strong\u003e The classic preparation — stir-fry over high heat in sesame oil with garlic and ginger for 2–3 minutes until wilted but still crisp. The thick petioles hold their texture beautifully.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSteamed:\u003c\/strong\u003e Steam whole baby heads for 4–5 minutes and drizzle with oyster sauce, sesame oil, and fried garlic for an authentic Cantonese preparation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSautéed:\u003c\/strong\u003e Slice and sauté in butter or olive oil with garlic for a simple, versatile side dish that pairs with any protein.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoups \u0026amp; Ramen:\u003c\/strong\u003e Add halved baby heads or sliced leaves to miso soup, ramen, or pho in the last 2–3 minutes of cooking for tender, flavorful greens.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRaw in Salads:\u003c\/strong\u003e Tender baby leaves add a mild, slightly peppery note to salads and grain bowls — especially good with a sesame vinaigrette.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicrogreens:\u003c\/strong\u003e Harvest at 15 days for intensely flavored, nutrient-dense microgreens — exceptional as a garnish or added to sandwiches and wraps.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"text-align: center;\"\u003e\u003cspan style=\"color: rgb(238, 23, 58);\"\u003eOrder Shanghai Pac Choi Seeds Today\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eOrder yours today and grow your own fresh Shanghai Pac Choi in your spring and fall gardens.\u003c\/p\u003e\n\u003ch3\u003eNutritional Information\u003c\/h3\u003e\n\u003cp\u003e\u003cem\u003eApplies to harvested pac choi (not planting seeds). Per 1 cup (70g) raw shredded pac choi:\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalories:\u003c\/strong\u003e 9\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Fat:\u003c\/strong\u003e 0.1g (0% Daily Value)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSodium:\u003c\/strong\u003e 46mg (2% Daily Value)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Carbohydrate:\u003c\/strong\u003e 1.5g (1% Daily Value)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDietary Fiber:\u003c\/strong\u003e 0.7g (3% Daily Value)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Sugars:\u003c\/strong\u003e 0.8g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtein:\u003c\/strong\u003e 1g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVitamin A:\u003c\/strong\u003e 156mcg (17% Daily Value)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVitamin C:\u003c\/strong\u003e 31mg (34% Daily Value)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVitamin K:\u003c\/strong\u003e 57mcg (48% Daily Value)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalcium:\u003c\/strong\u003e 74mg (6% Daily Value)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFolate:\u003c\/strong\u003e 46mcg (12% Daily Value)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e*Percent Daily Value based on a 2,000 calorie diet. Nutritional values are estimates for harvested leaves from mature pac choi plants.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch3\u003eImportant Disclosures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariety Disclaimer:\u003c\/strong\u003e While Shanghai pac choi has improved heat tolerance, extended hot weather will eventually trigger bolting. Plant timing for your climate accordingly. Results may vary by growing conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeed Storage:\u003c\/strong\u003e Store seeds in a cool, dry location away from direct sunlight. Properly stored pac choi seeds remain viable for 3–4 years.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlanting Zones:\u003c\/strong\u003e Grown as a cool-season annual in all USDA zones. Best in spring and fall. In Zones 9–11, plant October–March for a winter harvest. Can be grown year-round in mild coastal climates.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cem\u003e\u003cspan style=\"color: rgb(9, 83, 22);\"\u003eGrow something beautiful. Grow something delicious. Grow with David’s Garden Seeds®.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"David's Garden Seeds®","offers":[{"title":"Default Title","offer_id":44054072951041,"sku":"58552TLM ca","price":3.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0570\/4659\/7796\/files\/Leafy_Greens_Pac_Choi_Shanghai.jpg?v=1757296727","url":"https:\/\/davidsgardenseeds.com\/en-ca\/products\/leafy-greens-pac-choi-shanghai-500-non-gmo-heirloom-seeds","provider":"David's Garden Seeds®","version":"1.0","type":"link"}