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Failure of runner beans to set pods is a surprisingly widespread problem, particularly early in the season. Attention to soil conditions can help increase the harvest.
Even under ideal conditions, sometimes more than half of runner bean flowers may fail to set bean pods. If significantly more than this fail to set pods, yield is noticeably reduced.
The following steps have been shown to help improve pod set in runner beans:
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The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.