"If he cultivated the history of flowers in his years, he would be listed as the first incense in the world." Song Kui, a poet of the Song Dynasty, wrote a famous sentence of jasmine. Jasmine is a flower variety with important ornamental and economic value. Jasmine in Hengxian County is a double-jawed jasmine. Compared with single-lobed and multi-lobed jasmine, the yield is higher, the aroma is stronger, the disease resistance is stronger, and the flowering period is early, the flowering period is long, the flower bud is large, full and white, and the aroma is rich. Known for its traits.

The history of planting jasmine in Hengxian County has been recorded for more than 400 years. In 1566, Hengzhou Prefecture judged Wang Ji to recite in the "Junzitang Daily Consultation Hand", Hengxian "Jasmine is very wide, there are those who use it to arrange the fence, and often spend four times." The Ming version of "Yangzhou Zhi·Products" There are similar records, the Ming Dynasty poet Chen Kui-yu made a poem: "The exotic species can be boasted, the love of Xin is so alone, the cloud is oblique, the secluded times are a few fragrances, and the Wensi poems are beautiful." The jasmine is said. The commercial production of jasmine in Hengxian County began in the late seventies. In 1978, after the Third Plenary Session of the Eleventh Central Committee of the Party, the Hengxian Tea Factory (now reorganized as "Guangxi Jinhua Tea Co., Ltd.") was investigated and studied, based on market trends and understanding of jasmine at the time, The superior climatic conditions of Hengxian County are very suitable for the growth of jasmine. After deciding to vigorously develop jasmine production, we began to introduce double-jam jasmine seedlings, and experimented with farmers in the vicinity of the county and gradually promoted them. The results have achieved good economic and social benefits. In the 2013 China Tea Regional Public Brand Value List, Guangxi Hengxian Jasmine Tea ranked 15th in the national tea brand with a brand value of 1.529 billion yuan, ranking first in the Guangxi tea brand.

Hengxian Jasmine quality technical requirements (a) planting. It can be planted when the monthly average temperature is above 12 °C. The cultivation density is controlled at about 45,000 holes per hectare, and 2 to 3 plants are planted per hole. (2) Pruning. Spring pruning is carried out from early to late March. The height of pruning is generally 20cm to 30cm. It should be pruned from 2cm to 3cm in the last year's cut, and a low shear update every 4 to 5 years. (3) Soil and fertilizer management. After the spring pruning, 15 tons to 22.5 tons of farmyard manure or 10 tons to 12 tons of bio-organic fertilizer are applied per hectare. In the growing season, a suitable fertilizer based on compound fertilizer can be applied in a proper amount. When applying chemical fertilizer, nitrogen, phosphorus, potassium and medium and trace elements should be properly combined. Weeding loose soil is often done to keep the soil loose. (4) Pest control. Mainly using physical methods for pest control. It is strictly forbidden to use highly toxic and high residual pesticides. (5) Harvesting. Adopt "Mature Bud", not "White Flower" or "Green Bud". After 11 o'clock, it will be mined before dark, and the flower picking time should be postponed as much as possible. (6) Quality characteristics. 1. Sensory features: (1) Large buds: Each hundred flower buds are heavy, about 23 grams of spring flowers, 30 grams to 35 grams of flowers, and about 26 grams of autumn flowers. (2) Strong aroma: high aroma depth. (3) Long vomiting time: Open the spit from 8:00 to 9:00 pm, and the spit time lasts until about 10:00 the next day. 2. Physical and chemical indicators: flowers containing jasmine net oil is 0.4‰ to 0.5‰, linalool ≥17.0%, vinyl benzoate ≥11.5%, benzyl acetate ≥6.0%, jasmonone ≥4.8%, anthranilic acid The ester is ≥ 3.5% and 吲哚 u003e 2.2%.

Apply to：
Producers within the scope of protection of jasmine GI products in Hengxian County may apply to the Hengxian Quality and Technical Supervision Bureau of Guangxi Zhuang Autonomous Region for the use of “Special Marks for Geographical Indication Products”, which shall be approved by the General Administration of Quality Supervision, Inspection and Quarantine.