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Calculate your garden zone area [Your browser doesn't support IFrames. <a href="http://www.arborday.org/TreeInfo/ZoneLookup.cfm" target="_blank">Click here</a> to look up your arborday.org hardiness zone.
The Plant Hardiness Zones divide the United States and Canada into 11 areas
based on a 10 degree Fahrenheit difference in the average annual minimum temperature.
The United States falls within Zones 2 through 10.

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