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If you look at the USDA climate zone or Sunset climate zone map, you will note that one zone is separated from the next by “average winter temperature.” Zone 1 has the coldest average winter ...
Also, is there any value to knowing the Sunset climate zone which is much more specific? Plant retailers do not list the Sunset zone so I’m not sure what I can do with this information.
The U.S. Department of Agriculture has developed a climate zone map to help with plant selection. The “Sunset Western Garden Book” has also developed a different climate zone map for Western ...
Where plants are concerned, the primary limiting factor is cold. If you look at the USDA climate zone or Sunset climate zone map, you will note that one zone is separated from the next by “average ...