I'm going to try a few pole beans, bought a couple of step in fence posts and furring strips.
The 'garden' twine I've seen for sale looks pretty flimsy. What should I use for twine? I plan on zip tying wood cross posts top and bottom and wrapping the twine vertically.

Seeds? Or Plants? Or both for a graduated harvest?

I was going to do some bush beans - can I use tomato cages for those?

Also seeds or plants? Or both for a graduated harvest?

I'm single and can't eat all this at once so I am hoping to can some in those half jars (never canned before).

Any tips that go along with the canning plan?

Also - is it worth it to grow your own kidney beans to dry for future use? Not sure I have the space or want to do this but am curious.

Growing kidney beans worth it? No, not IMO. Takes too much space for any worthwhile production. Plus they need to dry on the vine so all that space is locked up well into fall.

Canning info? That is the Harvest Forum here for all the canning info you need. How-tos are readily available there.

Seeds or plants? Seeds. They do much better than trying to transplant.

Bush beans don't usually need any support. They are bushes and support themselves. But I guess you could use tomato cages if you needed to for some reason. I wouldn't.

Pole beans don't require heavy duty support unless wind is a real problem. If so you can use clothesline or even wire but the string has the advantage of being disposable at season end. If you are concerned just double the string. But many other more effective types of support are available too.

Check out the Beans and Peas forum here for more ideas and even some support pics.

Hope this helps.

Dave