Scutellaria baicalensis is mainly reproduced by seed, mainly by direct seeding. Its seeds are small and difficult to emerge, so the ground must be well prepared before sowing. First of all, you should choose a deep, loose and fertile, well-drained sandy loam, every 667 m 2 of rotting stable fertilizer 2000 to 3000 kg, then deep plowing and fine harrowing, make beds. The topsoil of the bed is required to be fine, flat, no irrigation conditions can not do the bed, the ground can be leveled.
Sowing period, spring sowing in March and April, summer sowing can be sown in the rainy season, can also be sown in winter, to spring sowing the highest yield, no irrigation conditions, should be sown in the rainy season. The general use of strip sowing, according to the row spacing 25 ~ 30 cm, open 2 ~ 3 cm deep shallow ditch, the seed evenly sown into the ditch, mulch about 1 cm, after sowing gently suppressed, per 667 m 2 seeding 0.5 ~ 0.75 kg. Because the seeds are small, in order to avoid uneven sowing, sowing can be mixed with 5 to 10 times the fine sand mixed after sowing. If the soil humidity is suitable, about 15 days to emerge, after the emergence of seedlings should be between the over-dense weak seedlings, when the seedling height of 6 ~ 7 cm, according to the plant spacing of 12 ~ 15 cm seedlings, and the lack of seedlings to make up for the place of the seedling, make up for the seedling must be transplanted with the soil, you can move the overdense seedling to make up for the seedling, watering after planting, in order to facilitate the survival of the planting.
In dry areas, early spring sowing can be covered with plastic film to preserve moisture, but also play a role in warming, to promote early seeding. Can also be covered with firewood or crop stalks, etc., should be removed in a timely manner after the emergence of mulch.
Difficulty with direct seeding on hillsides. Seedling transplantation (including seedling and cuttings) or root division propagation method can be used to plant. Transplanting should be carried out in the rainy season, and split-root propagation can be carried out in the dry spring in order to ensure full seedlings.