They soon do a good job of completely covering all the poles from bottom to top (and beyond).
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.
Each can get to be quite a generous size while still retaining their flavour and tenderness.
The littlest seem to get eaten raw!
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.