Core Viewpoint - The article highlights the trend of urban residents in Shenzhen engaging in rooftop gardening as a means to save on grocery expenses and find relaxation amidst the city's fast-paced lifestyle [4][45]. Group 1: Rooftop Gardening Trend - Many residents are transforming rooftops into vibrant gardens, growing vegetables and fruits, which not only beautifies the space but also provides fresh produce [2][4]. - Young individuals, rather than older generations, are increasingly taking up gardening as a way to reconnect with nature and relieve stress from their daily work [3][41]. - The climate in Shenzhen is favorable for growing a variety of crops, including vegetables and fruits, due to its humid and warm conditions [6][14]. Group 2: Economic Aspects - While the initial costs of rooftop gardening can be high, including expenses for soil, pots, seeds, and fertilizers, the potential savings on grocery bills can be significant, with some individuals saving up to 3000 yuan per month [4][22]. - Renting rooftop space for gardening has become a business opportunity, with prices around 200 yuan per square meter per year, making it accessible for many urban dwellers [48][57]. - Despite the costs, many participants find the experience of growing their own food to be invaluable, emphasizing the joy and satisfaction derived from the process rather than just the economic benefits [20][22]. Group 3: Community and Social Interaction - Rooftop gardening fosters a sense of community, as neighbors share their harvests and experiences, creating bonds over shared interests in gardening [36][50]. - Participants often engage in resource recycling, using kitchen scraps and organic waste to create compost, further enhancing their gardening experience and promoting sustainability [55][61]. - The act of gardening serves as a therapeutic outlet, helping individuals cope with stress and anxiety, and providing a sense of purpose and fulfillment [40][60].