小时候不爱吃的丑菜，又在江浙沪火起来了？

Core Viewpoint - The rise in popularity of "Heitaicai" (black tatsoi) from Rugao, Jiangsu, has transformed it into a sought-after vegetable, with prices surpassing those of meat, driven by health trends and effective marketing strategies [4][6][8]. Group 1: Market Dynamics - In early December, local farmers in Rugao sold Heitaicai for 1.5 yuan per jin, with a total sale of 3,000 yuan [1]. - In Shanghai, Heitaicai is currently priced at 5 yuan per jin, down from 7-8 yuan last year, indicating a shift in market dynamics [1][3]. - The price of Heitaicai has reached 9.39 yuan for 400 grams during festive seasons, highlighting its premium status [3]. Group 2: Cultural Significance - Heitaicai is traditionally consumed in Jiangsu and has been associated with local customs and health benefits, often referred to as "longevity vegetable" [6][8]. - The vegetable's unique taste and texture, especially after frost, contribute to its cultural significance in winter meals [5][6]. - The popularity of Heitaicai has led to a resurgence in its consumption, with many people reminiscing about their childhood experiences with the vegetable [10][11]. Group 3: Agricultural Practices - Rugao has standardized the cultivation of Heitaicai, with 20,000 acres dedicated to its production, enhancing its status as a geographical indication product [8]. - The local soil, rich in selenium and minerals, is believed to contribute to the health benefits associated with Heitaicai [7]. Group 4: Marketing and Branding - The rise of Heitaicai can be attributed to effective branding and promotion by local businesses, such as He Fu Ramen, which has introduced the vegetable to a wider audience [8][10]. - Social media has played a significant role in popularizing Heitaicai, with many users sharing their experiences and recipes [6][8].