USDA Plant Hardiness Zone Map
The 2012 USDA Plant Hardiness Zone Map is the standard by which gardeners and growers can determine which plants are most likely to thrive at a location. The map is based on the average annual minimum winter temperature, divided into 10-degree F zones.
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Coryphantha
Coryphantha are small cacti from Mexico and the Southwest of the USA....
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Echinocereus
Echinocereus is a widespread and large genus of clumping cacti, prized for...
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Opuntia/Cylindropuntia
Opuntia are the ubiquitous "Prickly Pears" of the western US and Mexico....
