Pole Beans in Containers - Yellowing Leaves
I have pole beans growing in a ten-gallon pot using soilless mix. It has been hot the past month and they get plenty of sun. While it has climbed to 7 feet tall, many of the bottom leaves are yellowing. This is happening to new leaves and old leaves alike, for any that are on the bottom of the plant.
I have read so many causes online: too much water, not enough water, too cool, insects, over-fertilizing. I have fertilized it with MG Tomato Plant Food once this summer. While lots of people blame over-watering, the days have been so hot and sun so strong the plants are wilted when I get home from work. They always perk up once watering. This is why I think over-watering is NOT the problem.