A hardiness zone is a geographic area with a similar average minimum temperature. The map is based on the average annual extreme minimum temperature, so people in those areas know which plants can ...
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Weather, water and landscaping: What to know about gardening on the High Plains in 2025MyHighPlains.com has compiled a roster of updates on the state of gardening on the High Plains in 2025, including plant ...
In 2023, the USDA released an updated map that recategorized nearly half the country in new gardening zones because of global warming. “Overall, the 2023 map is about 2.5 degrees warmer than the 2012 ...
The USDA bases its plant zone maps on average minimum temperature so people in each zone know which plants can best withstand their local weather. For example, a tropical plant that needs 40 ...
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