Thyme is produced in China, Gansu, Shaanxi, Qinghai, Shanxi, Hebei, Inner Mongolia, etc. It is born in rocky mountains, slopes, valleys, ravines, roadsides and weeds. Thyme plants are relatively low, with stolons growing along the ground surface and extending nearly horizontally. Adventitious buds on stems can germinate many roots and form a strong root network, which can effectively prevent soil erosion.
rosemary is native to Europe and the Mediterranean coast of North Africa, and is mainly cultivated as a cash crop in southern Europe. It was introduced in China during the Cao Wei period, and now it is mainly planted in most parts of southern China and Shandong.