There are some 73,000 species of trees on Earth, according to one recent estimate. The writer Daniel Lewis zeroed in on a tiny fraction of them for his new book, "Twelve Trees." Each chapter is one ...

Challenging UNDATED (CNN) -- The first time Sam Van Aken saw tree branches being grafted and grown onto other trees, he likened it to Frankenstein. Yet, when the process became a full-time fascination ...

From Sugar Maple to Paperbark Maple, there are more than 100 types of maple trees. These trees and shrubs are different in color and growth. They also give multiple options for landscaping. Here are ...

Find out what types of oak trees are best for your growing conditions, from dry to wet, and sandy to clay soil. I'm a big fan of all types of oak trees, and I’ve even sprouted an acorn from a tree at ...