JoeReal

Banana's phenostages are correlated based on total accumulated number of WARM hours rather than calendar days or months. Hot hours like those exceeding 95 deg F are not also counted, likewise anything below 55 deg F are not counted. Those from 55 to 65 are partially counted. Thus it may take 7 years in your area to accumulate the proper growing hours provided it did not die back to the ground during that period due to cold or other acts of nature.

I have not seen extensive research on these types of phenological correlation with growing degree hours done for bananas. This is the opposite of chilling hours done extensively for temperate crops.