The new plant hardiness map uses data from 13,412 weather stations, compared to the 7,983 that were used for the 2012 edition. The map is based on 30-year averages (1991 to 2020) ...

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.

The plant hardiness map is divided into a total of 13 zones, each zone representing a 10-degrees-Fahrenheit range of temperatures.Each zone is further divided into two half zones, with each of ...

USDA updates plant hardiness map for the first time in more than a decade NPR's A Martinez talks to Ashlie Thomas, author of How to Become a Gardener, about the map gardeners and farmers use to ...

The 2023 USDA Plant Hardiness Zone map, which was generated based on weather data gathered from 1991 to 2020, indicates that about half the United States moved into a warmer zone.

The new Plant Hardiness Zone Map reveals that about half of the country shifted to the next warmer half zone, when compared to the previous map, compiled in 2012. Contributed / USDA.

The Plant Hardiness Zone Map is based on the average annual extreme minimum winter temperature, displayed as 10-degree F zones ranging from zone 1 (coldest) to zone 13 (warmest), the USDA notes.

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 ...

The Plant Hardiness Zone Map is based on the average annual extreme minimum winter temperature, displayed as 10-degree F zones ranging from zone 1 (coldest) to zone 13 (warmest), the USDA notes.

As of the most recent release, the November 2023 map has the US broken into 13 cold hardiness zones in 10-degree Fahrenheit intervals, with each zone further broken into “a” (the warmer half ...

New plant hardiness map, used by gardeners nationwide and based on OSU climate data, unveiled. Published 11:00 am Monday, November 20, 2023 ...