Hardiness zones represent the average annual extreme minimum temperature during a 30-year period. In zone 5a, the lowest temperature on average was between minus 15 and minus 20 degrees Fahrenheit.

The hardiness zone map is not a guarantee your plant will survive. It's important to understand that the USDA hardiness zone is an indication of which plants are most likely to thrive in a location.

The 2023 map is about 2.5 degrees warmer than the 2012 map, translating into about half of the country shifting to a warmer zone. The new Plant Hardiness Zone Map. Contributed / USDA ...

Trees: White spruce (Picea glauca), quaking aspen (Populus tremuloides) ... In 2023, just over a decade after the last update, the USDA republished the plant hardiness zone map.

Knowing where your home is on the USDA Plant Hardiness Zone Map is important, but so is understanding your Southern climate zone if you want to choose perennials, trees, and shrubs that will ...

The map is based on 30-year averages of the coldest winter temperatures at specific locations, and divides the continental U.S. and Canada into 10 zones, which are further divided into half-zones.

An updated plant hardiness zone map released by the USDA last month shows nearly half of the country is now classified in a "warmer" zone than it used to be. That includes parts of Southeastern N.C.

If you are wondering whether that shrub, flower, or tree that you saw in a magazine or catalog will grow well in your garden, using a hardiness zone map is your best bet to ensure success.

To get started, take a look at the U.S. Department of Agriculture Plant Hardiness Zone Map and see where your garden sits. When this map was updated in 2023, most locations in Louisiana became one ...

Plant hardiness zone map an important, but not tell-all tool for gardeners The 2023 map is about 2.5 degrees warmer than the 2012 map, translating into about half of the country shifting to a ...