Plant hardiness zones:

The USDA has divided North America into 11 hardiness zones based on average annual minimum temperatures. Horticulturalists and nurseries rate plants by their hardiness; the hardiness zone maps can then be used to determine the likely survivability of particular plant species and varieties according to one’s local growing area.

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Information and definitions of the terms been taken from various reliable government publications and we have done our best to verify their accuracy. If you feel any of the definitions are incorrect or needs to be updated please contact us and we will look into it.

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