Valuable. A 1-meter-thick tree is equivalent to a meter diameter of 31 centimeters. China Garden Network shows that toona buds have a meter diameter of 20 centimeters and cost 800 yuan. Therefore, a 1-meter-thick toon tree is more expensive and very valuable. Toona trees are native to China, and are now both wild and cultivated. North China, East China, central China, south and southwestern provinces and regions are the main production areas. They are also distributed in North Korea. Toona trees like light, temperature, and are relatively tolerant of moisture. They are suitable for growing by rivers. In the fertile soil around the house.