Your dwarf citrus can be grown in a container. The problems with dwarfs in AZ is the salts amounts in the soils here, it's easily treated and easier to do in a container so I wouldn't worry about that as a issue for container growing, I'd be more concerned with the heat on the container, then again that can be controlled also.
Plums will wilt from radiant heat, but I'd give more than 2' for any tree from a wall if you can, otherwise consider another plant, grapevine maybe?

Here is a link that might be useful: RSI Growers

Bamboo, jujubie, mango, guava, banana, to name a few.

Great, I have 2 bradford pear trees 2ft away from my wall. The nursery told me that distance would be fine. They were planted in May, 15 gal's, do you know if it could cause them more harm to transplant them when it's cooler or is it just too late?

This little guy produced over 20 lemons last year.

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This is what he looks like on "cold" nights:

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This is what I do with the lemons:

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Zonny! Great pics! Your lemon tree is great.! Are all of those bottles filled with lemon juice? Or some other treat??

I'm so glad you're embedding pics. So fun to seeeeeee.

Take care,
Grant

Lemoncello Grant.

And if GardenWeb has bandwidth, I have pics!!

Neat! I had to look it up to see what it is (some type of beautiful liqueur). Very cool.

Thanks for the fun pics and updates--keep them coming. The more pics the better.

Take care,
Grant

Wow, and here I was only thinking of using the lemons for menudo and salsa. I've been limiting myself all these years. Thanks for the pics