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You can use the Plant Files that are on this site--here's the link [HYPERLINK@davesgarden.com] (Or you can go to the "Guides and Information" tab at the top of the page and follow the link from there.)
I checked teak and unfortunately the hardiness isn't listed. There are a number of trees with the common name rosewood, so without knowing the Latin name of the one you're looking for I couldn't tell you, but you can look it up in Plant Files and hopefully you know which one it is that you're interested in.
Also, I think you might be in zone 10 rather than zone 9. I'm in zone 9b and I know your winters are milder than mine. So chances are both of these would grow for you, just might want to protect them a bit when they're small if you get a hard winter.
Thanks for the info. I checked with this site and got the same info you did... none... It's tough I think because most folks don't try to grow these trees (unfortunately, if they did most of us and our children could retire wealthy between the ages of 20 and 35). The rosewood I am trying is cocololo and granadilla or dalbergia retusa and dalbergia turcurensis. That is until I can find a source for brazilian (dalbergia nigra) this one would have us retiring by the age of 18. Thanks again for your help.
Plant Files is usually pretty good, but sometimes on plants that not too many people grow that info will be missing. If you know of nursery sources for the plants they should have some info on hardiness, some will have it listed on their site but even if they don't you could probably call or email them and they'd have some idea. But given your climate, if you can find these and they don't cost a fortune it's probably worth giving them a shot, you don't get frost very often so chances are they'll make it through your winters. I think both of these are native to hot humid climates though so I'm not sure if they'll enjoy your cool summers, low humidity, and lack of rain.
Think I may give the rosewood a try. Out $10 is it dies. I can't find a zone but I think it really needs the tropics. Who knows, apparently no one so why not give it a shot.
