Why aren't my pole beans producing?
There may be several reasons that your beans are not producing. Possibilities are lack of sunlight or overfertilization. Also, if your beans are planted too close together, the production goes way down. Cold, wet spells and excessively hot, dry periods can cause flowers to drop, reducing yields. Beans prefer temperatures between 70° and 80°F. If the maximum temperature is consistently over 85°, the flowers will drop off without setting pods.
See our publication on Vegetable Profiles: Beans for cultural information.