Low temperature is a crucial factor in the survival of plants at specific locations, but it's not the only thing for gardeners to keep in mind when selecting plants and locations for them to grow.

Clockwise from top left: The Hewes Virginia crabapple, the Rambo, the Surprise, and the Arkansas Black. Credit: Boulder Apple Tree Project In the late 1800, Colorado was one of the top apple growing ...

What's the difference between a crabapple tree and an apple tree? This might sound like a setup for a joke, but it's a real question you might find yourself asking when that tree in your yard starts ...