The planting time of water spinach is mainly in spring and summer. Water spinach can be planted in spring, summer and autumn, mainly in spring and summer. The planting time is February-March in the south, March-April in the middle and lower reaches, April-August in the north, and mid-September in autumn, while11-February can be planted in the greenhouse. The growth rate of water spinach is different at different planting time. Water spinach, formerly known as Cai Yong, is also known as rattan, water spinach, water spinach, heartbreaking, heartless, urn, hollow and bamboo leaves. It is an annual or perennial creeping herb of convolvulaceae. Suitable for growing in warm and humid areas, with long harvest period. It is a green leafy vegetable widely cultivated in summer and autumn in various provinces of the Yangtze River Basin. Ipomoea aquatica is a leafy vegetable growing in summer, which is widely planted, with high yield and long harvest period. It is one of the important green leafy vegetables supplied by the off-season market in summer and autumn.