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According to the new map released in November 2023, about half of the United States has shifted to a new hardiness zone. That's really big news if you consider 80 million Americans use this map to ...
The map excluded the detailed a/b half-zones introduced in the USDA's 1990 map, an omission widely criticized by horticulturists and gardeners due to the coarseness of the resulting map. The USDA rejected the AHS 2003 draft map and created its own map in an interactive computer format, which the American Horticultural Society now uses. [5] In ...
For example, Seattle, Washington, and the city of Austin, Texas, are both in the USDA hardiness zone 9a because the map is a measure of the coldest temperature a plant can handle.
According to the new map released in November 2023, about half of the United States has shifted to a new hardiness zone. That's really big news if you consider 80 million Americans use this map to ...
Various hardiness ratings are published. In the United States (US), the most widely used is the U.S. Department of Agriculture (USDA) system of hardiness zones based on average minimum yearly temperatures. [4] This system was developed specifically for the extremely diverse range of conditions in the US, from baking desert to frozen tundra.
Initially, before the establishment of agricultural zones, there was a formal designation of special agricultural districts across the state. Following the updated law, local governments across the state were to have no control over zoning, allowing for the facilitation of co-existence between farm and non-farm uses. [ 9 ]
How many zones are in the USDA cold hardiness map? A shaded pathway at Yew Dell Botanical Gardens leads to the Castle Terrace, a stone castle that was hand-built in the 1950's. June 14, 2022
Retrieved from "https://en.wikipedia.org/w/index.php?title=USDA_Plant_Hardiness_Zones&oldid=59860879"https://en.wikipedia.org/w/index.php?title=USDA_Plant_Hardiness_Zones
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