When trees start changing in early spring, many types of crabapples are among the first to start flowering. There are more than 1,000 known cultivars of these popular trees, and they all have slight ...

Extreme temperature swings, known as continental climate, are common in North America's interior. Plants enter a hibernation-like state called dormancy to survive cold winters and avoid growing too ...

Young trees and species with thin bark are especially vulnerable to sunscald. Photo courtesy Getty Images. Welcome to our tree column, “Ask your local arborist.” Each month, arborists from the Davey ...