First time pea grower here. I planted Lincoln shell peas. When they start putting blossoms out, are they done growing?

I put up a 6 ft tall trellis. Just looked at the package info again, and it lists the height as "24-30 inches". Mine are about that tall, and look kinda silly on such a big trellis :) Guess I should read seed packets better. I was expecting a wall 'o pea vines!

Just found a couple of blossoms yesterday. Each blossom will produce one pod, or many pods?