Houttuynia Cordata: Characteristics, Benefits and Planting Methods Explained

Houttuynia cordata is a perennial herbaceous plant of the genus Houttuynia in the family Saururaceae, named for the fishy odor its stems and leaves give off when crushed. In southwestern China it is often called zhe'ergen, and the two names actually refer to the same plant, just called differently from place to place. Houttuynia cordata favors warm, humid environments, and in the wild it is mostly found on field ridges, beside ditches and in damp, shaded spots under trees.

In appearance, the houttuynia cordata plant is not tall, its leaves are heart-shaped, and its thick, tender white underground rhizomes are the main edible part. Dishes such as cold-tossed zhe'ergen and houttuynia cordata stir-fried with cured meat are very popular in Guizhou, Sichuan and Yunnan, and the tender leaves can also be boiled in water or used as a seasoning. In traditional food-therapy thinking, houttuynia cordata is often considered to have a heat-clearing effect, and after being dried in the sun it can also be steeped in water as a tea substitute.

Cultivating houttuynia cordata by hand is not difficult, and a loose, fertile sandy soil with convenient drainage and irrigation should be chosen. Propagation mostly uses cut sections of underground stems, carried out after temperatures rise in spring; during the growing period, keep the soil moist, weed in time and apply additional fertilizer as appropriate, and the plants will grow vigorously. Houttuynia cordata has strong resistance, relatively few pests and diseases, and is fairly trouble-free in daily management.

As for the question of whether zhe'ergen is houttuynia cordata, the answer is clear: the two are the same plant. As consumption of specialty vegetables heats up, more and more people view the planting prospects of houttuynia cordata favorably; mastering scientific growing methods and doing a good job of field management and harvest scheduling can help achieve better quality and returns.