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This is a map of planting zones in North America. Planting zones are determined by the range of temerature common in the area. Most plants that you typically would garden and or farm are best planted in the temperate zones (light green to yellow-orange). Red and orange areas are too hot for most plants and blue and purple areas are too cold for most plants. Please note that some plants only survive in the extreme zones, for exaple, cactus.
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Zone 3
Avg. minimum Temperature: -40 to -35 degrees Celcius / -40 to -30 degrees Farenheit
Zone 4
Avg. minimum Temperature: -35 to -29 degrees Celcius / -30 to -20 degrees Farenheit
Zone 5
Avg. minimum Temperature: -29 to -23 degrees Celcius / -20 to -10 degrees Farenheit
Zone 6
Avg. minimum Temperature: -23 to -28 degrees Celcius / -10 to 0 degrees Farenheit
Zone 7
Avg. minimum Temperature: -18 to -12 degrees Celcius / 0 to 10 degrees Farenheit
Zone 8
Avg. minimum Temperature: -12 to -7 degrees Celcius / 10 to 20 degrees Farenheit
Zone 9
Avg. minimum Temperature: -7 to -1 degrees Celcius / 20 to 30 degrees Farenheit
Zone 10
Avg. mininmum Temperature: -1 to 5 degrees Celcius / 30 to 40 degrees Farenheit
Avg. minimum Temperature: -40 to -35 degrees Celcius / -40 to -30 degrees Farenheit
Zone 4
Avg. minimum Temperature: -35 to -29 degrees Celcius / -30 to -20 degrees Farenheit
Zone 5
Avg. minimum Temperature: -29 to -23 degrees Celcius / -20 to -10 degrees Farenheit
Zone 6
Avg. minimum Temperature: -23 to -28 degrees Celcius / -10 to 0 degrees Farenheit
Zone 7
Avg. minimum Temperature: -18 to -12 degrees Celcius / 0 to 10 degrees Farenheit
Zone 8
Avg. minimum Temperature: -12 to -7 degrees Celcius / 10 to 20 degrees Farenheit
Zone 9
Avg. minimum Temperature: -7 to -1 degrees Celcius / 20 to 30 degrees Farenheit
Zone 10
Avg. mininmum Temperature: -1 to 5 degrees Celcius / 30 to 40 degrees Farenheit