The newly bought onion leaves are fresh and watery, whether it is fried or eaten with dipping sauce, or green onion, bright and tasty. But after two days, the leaves turned yellow, and the light blue also became softer. If the roots of fresh green onions are put into plastic bags and sprinkled with water, they will stand on one side for three or five days. Onion leaves are as green as the original ones. Chui-sheng is even fresher than when he first bought it, just as he grows in the ground. China Agricultural Network Editor