I remember when I was a child, there was a Toona sinensis tree at home, which was about one foot in diameter and two feet high. I don't know the age of the tree, and I don't remember it. Natural death in the mid-1970s. After the tree died, new buds sprouted on the roots. When the bud grows into a tree, it is about one foot in diameter and two feet in height. The tree died naturally at about 20 10. In the first three years of its death, it will blossom and bear fruit every year. Flowers are white in color and shaped like mung beans. When you stand under the tree, you can smell the flowers. The fruit of this tree is like a bunch of grapes, green fruit and hard shell. After the tree died, new buds sprouted on the roots. In this way, the tree is 35 years old.