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plant hardiness zones: Media
botany and geography
Images
Snowdrops
Many snowdrops (Galanthus species) are hardy from zones 7 to 3, meaning...
© Pavlo Vakhrushev/Dreamstime.com
Plant Hardiness Zone Map
The 2023 Plant Hardiness Zone Map by the U.S. Department of Agriculture.
Agricultural Research Service, U.S. Department of Agriculture
Interactives
Evolution of plant hardiness zones
A slideshow of the changes to plant hardiness zone maps in the United States since...
Encyclopædia Britannica, Inc.
2012 and 2023 Plant Hardiness Maps
Slider showing the 2012 USDA Plant Hardiness Map (left) and the updated 2023 version.
Encyclopædia Britannica, Inc.
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