How many types of trees are there? How do they grow so fast?
There are about 750 types of trees in North America and about 100,000 in the world. Many of those are endangered. Those numbers count both conifer (cone bearing) trees and deciduous trees. You can find the names of many conifers on this site … just click Tree Types in the Elementary section. Conifer trees that are grown on farms for the holidays take 7 to 14 years to grow. The trees that you can buy at Christmas have actually been growing for quite a while!!!! You can read more about how these trees grow in Trees on a Farm in the Elementary section!