Answer: Hyacinth bean (Dolichos lablab) can grow to 30' high in a single season. It's generally treated as an annual plant, but if your winters are mild, the stems will become woody and new leaves will sprout the following year. It does not have the bad habits of kudzu, even though it appears to be similarly vigorous. If planted in a sunny location you should expect flowers and beans in the mid-summer. I'd leave it in place - at least until the fall months, just to see the flowers and beans it will produce.
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