These plants with tender tendrils do best on wooden lattice work, chicken wire or plastic mesh materials. They need something to grab onto quickly.
You can wrap chicken wire or mesh-type material around your pole to help encourage them to climb.
Their roots will thrive if you sow the seeds thickly, about 1/2 to 1 inch apart.
I'm not sure as to the constricting issue since you didn't mention which climbing bean you are wanting to plant.
Hope this helps.Good luck.