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The USDA released a new hardiness zone map and half of the country has shifted. ... You simply type in your zip code and it gives you zoomed in, color-coded view of your area, complete with what ...
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.
The new data is based on 1991-2020 GIS data collected from over 13,000 weather stations.
For practical purposes, Canada has adopted the American hardiness zone classification system. The 1990 version of the USDA Plant Hardiness Zone Map included Canada and Mexico, but they were removed with the 2012 update to focus on the United States and Puerto Rico. [8] The Canadian government publishes both Canadian and USDA-style zone maps. [37]
The soil in Cameron Park is reddish and clay-like and usually must be amended in order for many non-native ornamental plants to survive. The soil is derived from Gabbro type of volcanic bedrock and despite its clay-like composition it is good soil and rich in nutrients. Cameron Park is in Sunset Climate Zone 9 and USDA Plant Hardiness Zone 9A.
Hopkins' bioclimatic law states that in North America east of the Rockies, a 130-m (400-foot) increase in elevation, a 4° change in latitude North (444.48 km), or a 10° change in longitude East (two-thirds of a time zone) will cause a biological event to occur four days later in the spring or four days earlier in the fall. [1]
On the 2012 Plant Hardiness Zone map, Greater Columbus (and a good portion of the rest of Ohio) was in Zone 6a, where the average lowest temperature ranges from -10 to -5 degrees Fahrenheit.
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related to: search plants by hardiness zone list by zip code 18614 california