What are the propagation methods for Salvia miltiorrhiza? A detailed guide to the latest propagation techniques

Salvia miltiorrhiza, also known as red root or Dahongpao, is cultivated in most parts of China. It has high medicinal value, with effects of clearing heat and detoxifying, and removing blood stasis and activating blood circulation. It is extremely effective for irregular menstruation in women, and can even eliminate inflammation of the mammary glands and lymph glands. So do you know how it propagates? Let's find out together.

1. Root division propagation

At each year's harvest, select thick, bright red, pest- and disease-free, intact one-year-old roots as seed roots, and store them in moist sand until planting the following year. Alternatively, you can leave robust, pest- and disease-free plants unharvested in place as seed stock, then dig them up for planting the next year. When planting, cut the tubers into 5-7cm segments, let them dry slightly, then begin planting. Control the plant and row spacing when planting, insert them into the soil so the roots are not exposed, water, then cover with an arched plastic film tunnel. Water once a week, and sprouts and seedlings will emerge in about one month.

2. Rhizome head propagation

Rhizome head propagation is similar to root division propagation. Also at harvest, select robust, pest- and disease-free plants, cut off their thick roots for medicinal use, and use the thin roots less than 0.6cm in diameter and the rhizome heads at the base as seed material. Spray the seed stems with a low-concentration zinc sulfate solution, pile and cover them for 2 hours, then dry them and plant. The method is the same as for root division.

3. Seed propagation

Seed propagation is suitable for raising large numbers of seedlings. It is generally carried out in late March. First prepare the seedbed, then open shallow furrows 1cm deep on the seedbed at a row spacing of 33cm, mix the seeds with fine sand, and scatter them evenly, covering with soil just until the seeds are no longer visible. After sowing, cover with grass to keep warm and moist. Under suitable temperatures, seedlings will emerge in half a month. After emergence, promptly remove the grass cover and carry out seedling-stage management such as thinning and filling in gaps.

4. Cutting propagation

Salvia miltiorrhiza has strong asexual reproductive capacity and can generally be propagated in warm weather. In the south, this is usually in April-May, and in the north in July-August. First take the aboveground stems of Salvia miltiorrhiza and cut them into 10-15cm segments, remove the old lower leaves, and keep half of the new upper leaves. To improve the survival rate, it is best to insert them as soon as they are cut. Open furrows on the prepared bed surface and insert the cuttings at an angle, with a plant spacing of 4-5cm and an insertion depth of 6-7cm being suitable. After cutting, water and shade them.

The above is an introduction to the propagation methods of Salvia miltiorrhiza. We hope it helps you. To learn more related knowledge, please stay tuned to us.