Prolific Lima Bean Growth-Few Beans
For years we've tried to grow limas of different types. We do pole beans and get what looks like terrific plants, approximately 7 feet high. They run sideways until hardly any light can get through them. Bugs don't seem to be a problem (Our half-runner beans do about the same except that we get more beans, but they aren't prolific. ). Yet, we get very few beans.
Certified GKH Gardening Expert
It sounds like you may have a high nitrogen problem. High nitrogen will produce big plants, but few seeds/pods. Have your soil tested and cut back on nitrogen while increasing phosphorus. The phosphorus will help bring the plants back into balance so they can fruit.