Distribution of producing area of Rehmannia glutinosa

Rehmannia glutinosa is a perennial herb of Scrophulariaceae, which is born on hillsides and roadside wastelands at an altitude of 50,1100m. It is named because its underground root is yellow and white, and its root is one of the traditional Chinese medicines. It first appeared in the Shennong Materia Medica Classic. Let's take a look at the distribution of Rehmannia glutinosa.

Distribution of producing area of Rehmannia glutinosa

Rehmannia glutinosa is mainly distributed in Liaoning, Hebei, Henan, Shandong, Shanxi, Shaanxi, Gansu, Inner Mongolia, Jiangsu, Hubei and other provinces and regions, and is cultivated all over China and abroad.

Distribution of producing area of Radix Rehmanniae

Its roots grow rapidly at 25-28 ℃, born in sandy loam, barren hillside, hillside, wall, roadside, etc., at an altitude of 50-1100 meters.

Raw Rehmannia glutinosa is native to Beijing, Tianjin, Henan, Hebei, Liaoning, Shandong, Zhejiang, Jiangsu, Anhui, Shanxi, Shaanxi, Inner Mongolia, Hunan, Hubei, Sichuan and other places. The main producing areas are Henan, Liaoning, Hebei, Shandong and Zhejiang. There are also in Korea and Japan.

Environment of producing area of Rehmannia glutinosa

1. Like fertilizer: Rehmannia glutinosa likes loose and fertile sandy loam, but clayey red loam, yellow loam or paddy soil is not suitable for planting.

2. Light-loving: Rehmannia glutinosa is a light-loving plant, and the planting site should not be close to the edge of the forest or intercropped with tall crops.

3. Temperature: when the soil temperature is 11: 13 ℃, the emergence time is 30-45 days, and 25-28 ℃ is the most suitable for germination. In this temperature range, if the soil moisture is suitable, it will germinate one week after planting and be unearthed at 15-20 days, and the rhizome below 8 ℃ can not germinate. It takes 150 to 160 days from planting to harvest.