I live in Tucson AZ and Feedback and Immortality grow like weeds here (although Immortality doesn't rebloom for me.) I would contact the Phoenix Iris Society as they should be zone 10 or thereabouts.

I'll bet that Louisiana Iris would do well. They come from a mild climate, and have been quite adaptable in many locations. They like alot of water, but will grow in drained soil as well as swampy conditions.
Laetitia

I thought I had read that bearded, Iris will grow about any where, BUT Florida and Hawaii. They'll grow nice green foliage but not bloom. I have some in a large container and have nice green foliage. but they have never bloomed.
My friend in Hawaii couldn't get hers to bloom either. She finally gave them away due to limited yard room.
However, I heard Louisiana Iris grow really well in hot climates and was told they do well in Florida, where I live. I plan on getting some, but from what I understand most mail order nurseries don't ship Iris until early fall.

Some reblooming bearded iris that I planted a few months ago have bloomed for me in Hawaii. These are Pure As Gold, Feedback, Clarence, and Olympic Return. Golden Immortal has bloomed twice. I hope that rebloomers don't have the genetic trigger requiring cold weather to bloom.

Hawaii50,
Your recently planted TBs may have already had the buds when shipped (not visable of course). Let us know if they bloom again for you. Thanks.

Louisiana Irises are evergreen in the Deep South. There are many thousand varieties. Some of the more common ones like Sinfonetta, Clara Goula, Black Gamecock and Eclipse are available from Lowe's. There are many native varieties as well, such as Abbeville Red and Giant Blue. I bought a house in Baton Rouge with Giant Blue irises in the garden. I have red, blue, purple, yellow and white Louisiana irises as well. You may want to try Louisiana Iris Farms online. I can buy locally all year round. Louisiana irises are popular in Australia, also.