There are two types. The northern catalpa is hardy in Zones 4 to 8, and the southern catalpa in Zones 5 through 9. Both trees are native to parts of the U.S. and are occasionally attacked by the ...

The recent fire in Israel’s Carmel Mountains has cast a spotlight on what trees are best suited for Israel’s varied regions. JTA’s Dina Kraft also reports on what’s already there ...

Many different types of plants—mostly trees and shrubs—are used in bonsai, but artists are constantly working with and training new types of plants. “Some types of trees adapt better than ...

Phylogenies are a fundamental tool for organizing our knowledge of the biological diversity we observe on our planet. But how exactly do we understand and use these devices?