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Plant hardines zones
The temperatures are in degrees Celsius. Minimal of avg min. monthly temp ower longer period of time. Typicaly 10 years or more. There are no absolute minimums on map !
The red dots are places where plant will not survive to low winter temperatures. The yellow dots are places where plant will survive.
The map is only advisory. The specific plant may survive/not survive low temperatures beeing protected/not protected from wind,... Can mybe survive shorter periods of lower temperatures ..