Sometimes called “growing zones” or “gardening zones,” hardiness zones refer to a map developed by the USDA that separates the United States into regions based on the average low winter temperatures.

The USDA’s winter hardiness zone map has long been the standard used by home gardeners, plant breeders and researchers to determine which plants are most likely to thrive in their location, based on ...

In the news recently, the U.S. Department of Agriculture revised its plant hardiness zone map for the first time in more than a decade. As always, this is a hot topic in horticultural circles. What is ...

The U.S. Department of Agriculture’s new Plant Hardiness Zone Map confirms what gardeners have been noticing for years – our winters aren’t as cold as they used to be. USDA just released new ...

It’s taken more than a decade, but the US Department of Agriculture (USDA) has finally released an updated Plant Hardiness Zone Map that spans the nation and the territory of Puerto Rico in such ...

With spring on the horizon, many gardeners are preparing for prolonged, hearty growing seasons in their region. The United States has a diverse ecological footprint, so growing seasons differ slightly ...

Late last November, the United States Department of Agriculture (USDA) released an updated Plant Hardiness Zone map for the United States. Gardeners use this map to determine which plants and specific ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. When shopping for plants, you might notice labels that specify ...

A new version of the Plant Hardiness Zone Map has just released by the the U.S. Department of Agriculture, and it's big news for gardeners who rely on the data to determine which plants can survive ...

One of the significant pages you will read in your garden catalogs is the cold hardiness map. As important as it is to know your cold hardiness rating when ordering from that catalog, it may be as ...

When gardeners talk about the zone, they are usually not referring to a new diet, defense tactics, or the mental state they reach while working in the garden. Instead, gardeners most often speak about ...

Tom Oder is a writer, editor, and communication expert who specializes in sustainability and the environment with a sweet spot for urban agriculture. The official news that 2012 was the hottest year ...