|MadSci Network: Botany|
Your question is a little confusing. When you say how long do pole beans grow do you mean how tall or high they get or do you mean how long the pods get? Do you mean how many days/years? I'll answer all of these for you and the source of this information is from various garden catalogues. Pole beans are vines. Certain types grow to has much as 10 or 12 feet. The bean pods can grow to as long as 8 or 9 inches but if they grow too long they do not taste as good. Pole beans are annuals. This means they grow for only 1 growing season and die. They start producing beans in about 55 days from seeds, sometimes longer, sometimes less.
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