What are the growing conditions for gromwell? A detailed explanation of its environmental requirements
Gromwell is a perennial herbaceous plant in the Boraginaceae family. Its roots are rich in purple substances, and it is one of many traditional Chinese medicinal herbs. Gromwell has the effects of cooling blood, promoting blood circulation, and clearing heat and detoxifying, and it is commonly used clinically to treat warm-heat macules, damp-heat jaundice, heat constipation, and other symptoms. So what are the requirements for gromwell's growing conditions? Below, let us understand the growing conditions of gromwell together.
1. Soil
Gromwell is relatively strong in its adaptability to the environment, because it is cultivated in most areas of our country. However, gromwell has characteristics such as cold tolerance, fear of high temperatures, fear of water accumulation, and fear of waterlogging, so when choosing a planting site, we need to take its growth habits into consideration. Generally, a site with higher terrain and relatively dry conditions, deep soil rich in humus, and good drainage and irrigation is chosen; sandy loam, calcareous loam, and clay are all acceptable.
2. Temperature
Gromwell seed germination and growth both have strict temperature requirements. Generally speaking, gromwell cultivation has a dormant period, so for the seeds to germinate, the dormant period needs to be broken, and breaking the dormant period requires placing them in an environment at about minus one degree Celsius for twenty-four hours. Next, the best temperature for seed germination is between thirteen degrees and seventeen degrees, at which the seed germination rate is relatively high. Of course, there are also special varieties; for example, ** gromwell is not very strict about temperature requirements, and it can also sprout well under conditions of fifteen to thirty degrees.
3. Humidity
For gromwell seeds to germinate or gromwell plants to grow, the water requirements are also extremely high. Generally speaking, when gromwell seeds are sprouting, the soil humidity is best at about twenty percent, and there should not be too much water, otherwise it will cause the seeds to rot and become moldy, damaging the growth structure of the seeds. Next, gromwell is a plant that fears water, so in the later growth process, field moisture must also be strictly controlled, especially in the rainy season, when drainage should be carried out in time, while also ensuring there is no water accumulation in the field. During normal growth, the soil humidity cannot exceed forty percent, otherwise it is likely to cause root rot, seriously affecting the yield and quality of gromwell.
4. Nutrients
Gromwell has a relatively large demand for nutrients, so the nutrient content in the soil must be sufficient. Before planting, we need to improve the soil structure and fertility through fertilization. During the seedling stage of gromwell growth, we mainly use nitrogen fertilizer combined with phosphorus and potassium fertilizer; in the later fertilization stage, we use human waste and cake fertilizer, and the final topdressing is done with barnyard manure and phosphate fertilizer. At least three topdressings must be guaranteed each year.
The above is the editor's understanding of gromwell growing conditions. In fact, when planting gromwell, the first thing we should consider is gromwell's growing conditions. If the growing conditions are all suitable, then the subsequent planting work can be carried out.