Ginkgo biloba leaves can be preserved for three to six months at room temperature when wrapped in something, and can be wrapped in breathable cartons, cloth bags and so on. If you want to keep it for a long time, you can put it directly in the freezer of the refrigerator.

Ginkgo biloba is widely distributed in China, Japan, North Korea, South Korea, Canada, New Zealand, Australia, the United States, France, Russia and other countries and regions. Ginkgo biloba is widely distributed geographically.

Distribution: Ginkgo biloba is mainly distributed in temperate and subtropical climate zones in China, with marginal distribution of "Shenyang in Liaoning Province in the north, Guangzhou in Guangdong Province in the south, Nantou in Taiwan Province Province in the southeast, Changdu in Xizang Autonomous Region in the west and Putuo Island in Zhoushan, Zhejiang Province in the east", covering 22 provinces (autonomous regions) and 3 municipalities directly under the central government.

Ginkgo biloba resources in China are mainly distributed in more than 60 counties and cities in Shandong, Zhejiang, Anhui, Fujian, Jiangxi, Hebei, Henan, Hubei, Jiangsu, Hunan, Sichuan, Guizhou, Guangxi and Guangdong provinces.

In terms of resource distribution, Jiangsu, Shandong, Zhejiang, Jiangxi, Anhui, Guangxi, Hubei, Sichuan, Guizhou and other provinces have the most resources, but the distribution of resources in various provinces is also uneven, mainly concentrated in some counties or cities, such as Santai, Pizhou and Wuxian in Jiangsu, Tancheng, Tai 'an and Yantai in Shandong and Lingchuan and Xing 'an in Guangxi.