Yellow leaves on the bottom of bush bean plants
I'm growing four kinds of bush beans in pots. The pic below shows some of them in shade, but that only happens at the end of the day. I could move them if you think that's a problem.
Two varieties of beans are showing yellow leaves at the bottom. These are the pots with the largest plants, the ones with tendrils and blossoms.
It has been blazingly hot here this week, and I've been trying to assess their water needs. I'm thinking maybe in my efforts to not over-water, it's possible I haven't given them enough. Would under-watering explain the yellow leaves?