I live in central MN and have a problem getting beans to produce on my pole bean plants. The plants are thriving, just NO beans. ONE bean off of 30 plants..few buds.
Certified GKH Gardening Expert
It sounds like you have too much nitrogen in the soil. This will make for a large, lovely plant with no flowers, thus, no beans. Try adding some phosphorous to the soil to help balance it back out. Bone meal is a good source of phosphorous. If you are seeing blossoms but no beans, this article should help: https://www.gardeningknowhow.com/edible/vegetables/beans/bean-blossoms-no-pods.htm