Leek is a perennial herb. It has inconspicuous bulbs underground, and many nutrients are stored in the bulbs. It is these nutrients that enable leeks to grow again quickly after being cut. Leek leaves grow very fast. After cutting off the leaves, new leaves will grow back soon. Leek can't be cut indefinitely. It is a very common vegetable. You can cut it one after another, but it doesn't mean you can cut it all the time. Loosen the soil in time after each mowing, and fertilize and irrigate the new leaves in time. Autumn is coming, which is the season for leeks to absorb nutrients and accumulate nutrients to support their roots. Harvesting is generally not recommended. If you really want to harvest, at most two knives. As for winter, it is mainly used to produce leeks, and less harvest is needed according to the situation, which is beneficial to root storage of nutrients. Leek can be collected many times, and it won't be long before it is collected once. However, if the leek is harvested as soon as it grows, it will become thinner and thinner after several times, and some leeks will even die directly. Leek is generally thin, so it can be watered and fertilized in time to make it grow thick and easy to harvest. After 3 ~4 years of cultivation, leek will gradually become old, so it is necessary to dig out the old plants, divide them, cut off the roots and plant new ones again. Leek has strong regeneration ability and fast growth, and can be harvested many times a year and for many years. However, in order to achieve high yield of Chinese chives and prevent premature senility of Chinese chives, the harvesting times should be properly controlled, so as to ensure the robust growth of plants in the coming year and achieve the purposes of high yield, stable yield and high yield.