Where is the traditional Chinese medicine "rue" cultivated? What effect does it have? How to plant it?

Any of various woody perennial herbs of the genus Rutaceae and Rutaceae, whose stems, branches and leaves are used as herbs. So, where is the traditional Chinese medicine "rue" cultivated? What effect does it have? How to plant it?

First, where is the traditional Chinese medicine "rue" cultivated?

Rue is native to the coastal areas of the Mediterranean. There are many potted plants in the north and south of China.

Second, what effect does it have?

Rue has the effect of clearing heat and detoxification, cooling blood and dispersing blood stasis. Mainly for cold and fever, wind and fire, toothache, headache, sprain. The external use of branches and leaves causes redness and swelling of the skin. It is also an exciting stimulant, which mainly stimulates the uterus and nervous system, so pregnant women should not take it.

The unique fragrance of rue has insecticidal effect and can be used to drive flies; bright yellow flowers can add color to flower beds or make dried flowers, which is also a good material for flower arrangement. Rue is suitable for planting in slightly overcast places, as long as the drainage is good, that is, there is no need to choose the soil, directly sowing seeds in spring or by cutting can be easily cultivated. Rue is still the national flower of Lithuania.

Third, how to grow rue?

1. Seed propagation: sowing in spring and autumn. Direct seeding or seedling transplanting: direct seeding method, opening holes to sow seeds according to the row spacing of 45m × 30cm, covering soil 2-3cm, slightly suppressing and watering; seedling transplanting method, sowing seeds on the seedbed in autumn, covering soil with no seeds, slightly suppressing, watering, covering grass, transplanting the following spring. Cutting propagation:

2. Cutting seedlings, selecting 2-4-year-old strong plants, cutting semi-lignified branches as cuttings, cutting in the seedbed in the rainy season. Cutting in spring, transplanting in the same year; cutting in autumn, transplanting in the following spring. It is suitable to plant in spring in the north and autumn in the south.

3. Field management: seedling height 10-12 cm, seedling supplement. It needs to be ploughed and weeded 3-4 times a year, combined with topdressing human and animal manure. Irrigation is needed in the dry season and ditches are needed for drainage in the rainy season.

4. disease and pest control: the disease has root rot, spread the disease hole with lime. The larvae of citrus yellow butterfly are harmful leaves, which are sprayed with 800-1000 times liquid of 90% trichlorfon.