A Detailed Guide to the Cultivation Techniques of Centella asiatica (Pennywort)

Centella asiatica, also known as Shibakuai, pennywort, horse-hoof grass, Bengdawan and so on, is widely distributed across many provinces and regions of our country. Centella asiatica has very high medicinal value, with effects such as clearing heat and promoting diuresis, reducing swelling and detoxifying, and it has now been widely developed into an artificially cultivated economic crop. So, what cultivation techniques does Centella asiatica require? Let's learn about them together!

I. Soil

Choosing good soil is the prerequisite for planting. Centella asiatica has strong environmental adaptability and is not demanding about soil; loose, well-drained soil is suitable. It is best to choose loose, fertile humus soil. This kind of humus soil has good drainage and aeration, and is also relatively rich in fertilizer with ample nutrients, able to supply all the various nutrients needed for the growth of Centella asiatica. You can also mix your own growing medium: leaf mold, river mud and garden soil mixed at a ratio of 0.5:2:2 will do.

II. Temperature and Light

Centella asiatica prefers a warm, humid environment and is strongly shade-tolerant; it must not be exposed to direct sunlight, as the high temperature of direct sunlight will scorch the leaves. At the same time, it needs a moderate amount of light. When light is insufficient, its roots will rot, so it is best to place it in a half-shade, half-sun environment, maintaining 4-6 hours of light per day, which is beneficial to its growth. As for temperature, the suitable temperature for Centella asiatica is 10-25 degrees; in summer it should not exceed 32 degrees, and in winter the temperature should not be lower than 5 degrees.

III. Water

Centella asiatica is a moisture-loving plant, so during cultivation it must be watered frequently to keep the soil moist and promote robust growth. However, it should not be overwatered; the amount of water must be controlled. Overwatering causes water to accumulate in the soil, which may damage its root system and makes it highly prone to disease. You can adopt the method of watering frequently but in small amounts, and manage the soil moisture well.

IV. Fertilizing

Centella asiatica needs a large amount of nutrients during its growth process, so moderate fertilization is required during cultivation. Especially after entering the growing season, its growth is extremely vigorous and its demand for fertilizer is also higher, requiring fertilization about 2 times per month on average. When fertilizing, note that the fertilizer concentration should not be too strong; it is recommended to dilute the fertilizer with water before applying it. This not only avoids damage to the root system from concentrated fertilizer, but also improves the fertilizer's utilization rate and saves fertilizer.

V. Pest and Disease Control

Centella asiatica is relatively easy to grow and has very few pests and diseases. Occasionally, yellowing of the leaves may be seen, mainly due to lack of water, frost damage to the roots, poor air circulation in the room, or a heavy layer of dust on the leaves affecting photosynthesis. In this case, you can spray a compound fertilizer mainly based on nitrogen fertilizer, and pay attention to changing the water frequently and keeping the root system clean.

The above is the cultivation technique for Centella asiatica collected for you by the editor. Besides being used as a Chinese herbal medicine, Centella asiatica is now also widely used in the production of skincare products, with broad market prospects and substantial economic benefits. Those who are able to invest can consider it according to their own conditions.