Why do you want to hang calamus on Dragon Boat Festival? Efficacy and function of Acorus calamus

Why do you want to hang calamus on Dragon Boat Festival?

There is a custom of inserting calamus leaves and wormwood in the Dragon Boat Festival. Acorus calamus, with its fragrant smell, is a spiritual herb in the traditional culture of China, which has the functions of preventing epidemics and driving away evil spirits. It is the head of the Five Blessingg in the sky, symbolizing driving away the ominous sword, because the growing season and shape are regarded as "the breath of a hundred yin", and its leaves are sword-shaped, which can ward off evil spirits when inserted at the door. Therefore, the alchemist called it "water sword", and later the custom extended to "general sword", which can cut off all evil. In the Qing Dynasty, Gu Tieqing recorded in Jia Qinglu that "chopping Pu as a sword, chopping Peng as a whip, and hanging peach stalks and garlic on the bed are all used to exorcise ghosts". However, in the local chronicles of the Jin Dynasty, there is "mourning for the tiger, or cutting the ribbon for the tiger, with mourning attached to the leaves, and the wife fighting to cut it." In the future, it will be calamus, or human form, or Xiao Jian shape, called Pujian, to drive away evil spirits and ghosts. "

Efficacy and function of Acorus calamus

Acorus calamus leaves are green, dignified, beautiful and fragrant, which is suitable for waterscape shore and water body greening. Can also be potted for viewing or scenery. Leaves and inflorescences can also be used as flower arranging materials. The whole plant is fragrant and can be used as perfume or mosquito repellent; Stems and leaves can be used as medicine.

Acorus calamus is flat in nature and pungent in taste, and has the effects of inducing resuscitation and resolving phlegm, regulating qi and promoting blood circulation, expelling wind and removing dampness. It is often used to treat epilepsy, phlegm syncope, fever, amnesia, qi stagnation deafness, chest tightness, stomach pain, abdominal pain, rheumatic joint pain, carbuncle swelling and traumatic injury. In the market, the dried rhizome of bergenia saxifragaceae is passed off as Acorus gramineus, so attention should be paid to identification when using it.

How to breed calamus?

Acorus calamus likes humid environment, and the climate is cold and humid. It is born in dense forests or rocks beside streams at an altitude of 20-2,600 m.. Cold tolerance, avoid drought. Suitable for cultivation in swamps, wetlands or sandy loam with convenient irrigation and rich humus.

It is usually planted at 9 ~ 10, that is, after removing the old leaves, the plant is divided into 5 ~ 10 tillers, and then planted and watered. The plant spacing is about 30 cm, and it can grow into a dense plant in one or two years.

Propagation with rhizomes: Dig out rhizomes in spring, select small rhizomes with fibrous roots and leaves as seeds, plant them in holes with a row spacing of 30cm× 15cm, with 2-3 plants per hole, and then cover with soil and compact. Tiantuan management