Posted by Gus on 11/13/2008, 11:14 pm, in reply to "Re: Eucalyptus deglupta (Rainbow Eucalyptus)"
83.45.72.114
I am going to make a quite wild guess, and say that possibly the Northernmost limit for long term (?) cultivation of this species in the Western coast of the USA is somewhere between San Francisco and Coos Bay! 
In some Z 10 ish coastal area, very mild humid microclimate, where frosts are rare to very rare, and planted in a sheltered position.
I do not know the details of climate, so that is why it is a wild guess, but I am assuming that the more to the North, the more humidity (which this eucalypt likes, that is why it grew like a rocket in Seattle area). But also, the more to the North, higher risks of being hit by the Polar Express
A mix, to say it so, of Seattle and San Diego climates could work. If it exists!
Still, not sure it would be really long term
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