speckled butter bean bean plants have no beans

Question

My speckled Butter bean plants aren’t producing any beans but they are really healthy plants.

Answer 1

Too much nitrogen fertilizer will prevent pods from setting and focuses more on producing foliage growth. Heat can also be a factor, making pollination more difficult. This article might help: https://www.gardeningknowhow.com/edible/vegetables/beans/bean-blossoms-no-pods.htm