They soon do a good job of completely covering all the poles from bottom to top (and beyond).
Here is the skeleton in late June.
The beans are touted as growing 6-8 Ft. tall, but I think they would go as tall as the poles would allow.
It is a joy to browse the patch and pick the lovely dangling beans.Usually there is a set of 2 or 4 ready at any given time. 
Their are several seed sources for these, but we have purchased them from Lindenberg Seed in Manitoba for the last few years.
It doesn't take a huge number to make lots for a meal or two.
Each can get to be quite a generous size while still retaining their flavour and tenderness.
The littlest seem to get eaten raw!
It is very easy to miss them while picking, and inevitably a few get missed....these are the ones that can sometimes get a little large.
Even the "average" sized ones are 8 or 9 inches in length. It helps with the picking when they get too high to reach....they dangle down quite well.
