Thanks for the comments everybody.
Yes, I'm very proud of my back yard. While I live in one of the most northerly zone 8b climates in the world (at 48 degrees 25 minutes N. latitude I'm 250 miles closer to the North Pole than I am to the Equator), this little south west facing and sheltered bit of paradise with rocks and trees for protection gives me a zone 9a micro climate suitable for growing in ground citrus trees, pinot noir grape vines, figs and bananas. I think I'm going to add an olive tree.
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