Houttuynia cordata Thunb can be propagated by seeds, but its seed germination rate is not high, and the germination rate is only about 2% when its optimum germination temperature is 17~25 degrees. Therefore, most of the Houttuynia cordata planted by us are propagated by methods such as ramets, cuttings and roots. According to the 3 m wide bag ditch as a compartment, the compartment ditch is 5 cm and the ditch depth is 25 ~ 3 cm; Trench planting is carried out on the compartment surface, with the row spacing of 25-3 cm, the row depth of 8-1 cm, the row width of 12-15 cm, the row spacing of 25-3 cm and the plant spacing of 5-8 cm. After sowing, the soil is covered with 5-6 cm thickness.

It is also distributed in parts of North China and Tibet. This year, due to the wind of "returning to nature" and "homology of medicine and food", the wind of folk digging and selling Houttuynia cordata and eating characteristic wild vegetables has gradually prevailed, and the supply of wild resources is in short supply, and the market price is high. The root of the broken ear can be transported for a long distance, will not rot, will not cause a backlog of products, and will not be sold. Crocodile root is a shade-tolerant plant, afraid of strong light, and can be interplanted with other tall crops. Like warm and humid environment, you can use low-lying land where other crops can't be planted.

Some places in Guizhou are very popular. Influenced by them, Hunan, Hubei, Guangdong, Guangxi and other places are slowly being eaten, but the demand is not as great as that in Sichuan and Guizhou. After all, this thing has a strong fishy smell, and not everyone can stand it. The roots of broken ears are still in the soil, and few of them have been unearthed. We all like to eat it, such as cold pickled cabbage, fried bacon and shredded water beans. There are many ways to eat it. It is not only a peasant food, but also has medicinal value. It is said that it helped a lot during the SARS period.

Of course, there is a certain gap in the prices of different regions, and some places can only sell for one or two yuan a catty. At present, the retail price in the market is basically ranging from 1 yuan to 2 yuan a catty, so it seems that it is not very profitable. One person or both husband and wife can plant it. You can buy a rotary cultivator to cultivate land, which can improve efficiency, and this machine can also be used for multiple purposes, so as to alleviate the suffering of manual labor. Third, you don't need chemical fertilizer, just decompose farmyard manure, and the roots of broken ears don't need too much fertility, otherwise the taste of wild vegetables will be lost.