yellow bean leaves

Question

Leaves on runner beans going yellow. Is this too much watering? If so, how often should they be watered?

Answer 1

It could be either but likely they are underwatered. They need 5-10cm of water a week. I recommend longer, less frequent periods of watering when watering. This will get the water in deeper into the ground. For additional causes of yellowing leaves, this article will help: https://www.gardeningknowhow.com/edible/vegetables/beans/yellow-leaves-on-beans.htm