When you've always known deciduous trees to drop their leaves in winter, seeing one that hasn't can be unsettling. Here's why ...

There’s no denying it, as much as you may want to - summer is officially over. While that means long days in the sunshine may be behind us, another spectacle of a season is in full flow.

This phenomenon, called marcescence, adds a unique dimension to the winter landscape, and gives me something to ponder while ...

Ivy: So why do some plants stay green all year round? Do they not like to lose their leaves? Posey: Evergreen trees don't lose their leaves. That's because they are made differently with a waxy coat.