If you've ever taken a look at the planting instructions for your seedlings, flowers, or seeds, you would've notice that each plant has a designated United States Department of Agriculture (USDA) ...

Dominant in interior Alaska, Zone 1 is deemed inhospitable for most trees. Its bone-chilling temperatures can plunge to -60 ...

The U.S. Department of Agriculture recently released a new version of its Plant Hardiness Zone Map, updating this valuable tool for gardeners and researchers for the first time since 2012. USDA’s ...

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.

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I was asked by several people about my reaction to the change in the USDA’s plant hardiness zone map in 2023. I prefer to use Sunset’s Western Garden climate zone maps. The Sunset plant hardiness ...