1. Asparagus is native to the east coast of the Mediterranean and Asia Minor. There are still wild species in the grasslands and river valleys of Europe, Asia, and North Africa. It has a cultivation history of more than 2,000 years and was introduced to the Americas in the 17th century. It was introduced to Japan in the 18th century and to China in the early 20th century. It is cultivated in all countries in the world, with the United States having the most.

2. Asparagus cultivation in China started in the Qing Dynasty and has a history of only more than 100 years. It is cultivated sporadically in the suburbs of major cities in coastal areas and sold fresh locally. In the 1950s and 1960s, Taiwan Province's export sales of asparagus increased year by year. By the 1980s, Taiwan Province's vegetable exports accounted for a decisive role in total material exports, and asparagus exports ranked first among vegetables. In 1980, Taiwan Province exported 76,400 tons of canned asparagus and only 61,500 tons of frozen vegetables. The export volume of canned asparagus from Taiwan accounts for more than 70% of the world trade volume. After the 1980s, due to the poor quality of asparagus in Taiwan, the economic benefits of growing asparagus were underestimated. As a result, the planting area decreased year by year. By 1987, the export volume of canned asparagus was only 12,100 tons, decreasing at an annual rate of 23.1%. As a result, asparagus is in short supply in the international market. Since 1984, this situation has prompted China's Fujian, Henan, Shaanxi, Anhui, Sichuan, Tianjin and other cities to develop asparagus production on a large scale. By the early 1990s, the country's cultivation area reached more than 66,000 hectares, and the annual canned production exceeded 80,000 tons, making it one of China's main vegetable products exported to earn foreign exchange. Shandong Province is the main base for asparagus production. The annual export of canned asparagus accounts for about 1/3 of the country's total exports, and it plays a decisive role in the country's asparagus production and export. China's asparagus is mainly sold to the United States, Japan, Europe and other countries and Hong Kong, China.

3. According to statistical data in the early 1980s, the world's canned asparagus production was 200,000 tons, and the import and export trade volume was about 90,000 tons each. China and Spain are the main exporting countries, accounting for 80-90% of the world's exports. The main importing countries are Western European countries such as Germany and France. Countries such as the United States and Japan have gradually reduced their production due to the low economic benefits of canned asparagus production. China and Spain will be the future rulers of the asparagus trade in the world. With China's good ecological environment and the development of the domestic market, the great development of asparagus production is certain. Up to now, asparagus is still China’s main foreign exchange-earning vegetable, but it is still a rare vegetable with low sales volume in the domestic market.