You seem to understand the difficulties, or challenges, so why not go ahead with the tree of your choice? I have not tried it but am sure it is doable. Al

I see no reason to limit yourself to dwarf trees when growing in containers. I've linked to a thread in the Fruits & Orchards forum with some helpful information...

Here is a link that might be useful: Container Fruit?

shazaam

Thanks a milion for the link to Container Fruit forum
That solved a lot of problems for me.I think I will continu on with a project I had decided to abandon with my meiwa kumquat tree. My 55 gallon drums, 10 of them should do fine for my meiwa kumquat trees from seed and perhaps a few fruits I would never considered.

maca9 Go for it The trees you are looking are short lived and by the time they are root bound and decreasing in production. They will be decadent and dying, ready to replace.

I really like pictures so I'll post a picture of my 'at maturity' similar size tree to yours that will reside in a 55 gal. drum

{{gwi:1909}}
seed grown meiwa kumquat tree --click on pic opens slideshow. Use keyboard arrows to navigate

Click the link bellow to see where Meiwa will grow

Here is a link that might be useful: https://plus.google.com/photos/111099372377958308731/albums/5864651368775846321?banner=pwa&authkey=CI763rvAj8eLAg

Thanks for all the feedback.

Poncirusguy - thanks for the photos. How long do you think they would last before production slows and the tree needs replacing? Is it a 2-3 year thing or 5+? Just interested. Thanks.

5 + probably Trees in the peach family max out at 7 years and are often dead in 10. The trick is to get a small tree that you can train to say 5 to 7 ft and spreading..I do ,my peaches from seeds. The first year sprouted seed might grow to 2-3 ft. Trim it to 1 ft to get 3 or 4 trunks of it in its second year it could put on an additional 3 to 5 ft with many branches. The third year you'll start getting flowers but not many. The fourth year you will start getting a lot of fruit. If all goes well the tree will get just a little bigger and produce a lot more fruit. The barrel size will limit the useful size of the tree so you'll need to prune it keep the same size with fresh fruiting wood. as the year go on the roots will root bound and production will decline. and hopefully you will be 3 years into your replacement before the first tree dies. you want container trees short but wide, hence you are limited on root space. I have yet to have a peach tree last more than 7 years. If you get a grafted tree get a small young tree and branch it low nectarines are a little more finicky
good luck and check out the link above provided by shazaam I have. it is very informative and can give far more than I can