U.S. Department of Agriculture

In the Zone
We're all familiar with the climatic differences we experience in areas that get lots of snow as opposed to places that seldom (if ever) experience freezing conditions.  These not-so-subtle climate distinctions mean a lot to us as human beings - and have even more meaning in the world of plants and landscaping. That's why almost every one of my columns about plant selection has contained a disclaimer about checking with your local nursery to see if a particular plant will grow in your area.  That's also why the experts have developed a variety of