Introduction to ancient trees: Kao Corner is the main garden of the Botanical Garden. There are 330 Kao trees that are more than a hundred years old in the garden. Each tree has been transplanted from all over the country after going through hardships. There is the King of Crape Myrtle that is over 1,100 years old, there is the Tangdi that is over 800 years old, there is the Double Ninth Tree that is over 880 years old, there is the mulberry tree that is over 500 years old, there is the Saponaria that is over 400 years old, there is the King Osmanthus that is over 400 years old, there are The eleuthero tree is 380 years old, and the crape myrtle is more than 310 years old.