Isatis indigotica has a long family history. In the past, it was not only used to treat diseases, but also used as a dyeing agent for fabrics. "shine on you is better than blue", which means the extract of Folium Isatidis. Therefore, Isatis indigotica has been cultivated in a large area in China since ancient times, and it has been cultivated almost all over the country. Then, Isatis indigotica has such extensive growth characteristics, can it grow in any environment? Let's take a look at the growth characteristics of Radix Isatidis and what requirements it has for the environment.
Isatis indigotica, like radish and cabbage, belongs to Cruciferae. As we all know, cruciferous plants have strong adaptability to the growing environment and are easy to grow. The same is true of Radix Isatidis, which has low requirements for climate and soil. As long as there is enough light and soil with good water-saving conditions, it can grow well.
Isatis indigotica likes a warm growing environment and is relatively cold-resistant, but it grows slowly when the temperature is too low, and it is not resistant to waterlogging. After long-term waterlogging, the roots are easy to rot. It grows best in sandy loam with deep soil layer, good drainage and loose fertility, and its roots grow sturdily. On the contrary, some poor soil indigo can grow, but most of them do not grow well. So when planting, try to avoid places with poor planting conditions.
If there is no suitable planting place in your area, you can also plant it at a high position. This planting can also increase production and income. The method is to plow the barren planting land before sowing, and fully apply the decomposed base fertilizer, and then raise a high ridge with a height of 20-25 cm and a width of 50-60 cm before sowing. This plateau has the advantages of thick soil layer, fertilizer conservation, air permeability and water utilization, which is very suitable for the growth of Isatis indigotica.