2.5 years for the Mother plant to fruit? Did you push it at all? Here in zone 9, I have to push to get flowers. We mulch, water, fertilize and keep them pruned between 5 and 7 leaves max which gets us to a year or less depending upon the variety.
It has been a much slower grower than any of the dozen or so other varieties I've grown. I have gotten flowers in as little as 10 months up to like 18 months from a planted pup with common bananas.
After failing with my first variegated however, I treated this with more attention to input, it received what I deemed sufficient water and compost, light fertlizer and manure based on climate conditions and foliar indicators... they are sensitive and react quickly when they're not happy. Too much N and they burn up, too much sun they burn up, too much water, they rot, too much trimming they stall out, etc. The white parts in the leaves will literally dissapear and look like a burnt edge of paper with too much heat/sun and not enough water, and will discolor and sweat when overwatered!
Definitely wouldn't recommend "pushing" them like any other Cavendish or comparable banana that just eat and drink whatever you throw at them. Definitely doesn't like the cold and I believe that played a role in the delayed flowering as well. Between the cold and the wind last winter I'm blessed and impressed that it's still alive and fruiting.
WOW!!! I have some on order... Really was not aware of all of these issues. Use to have 30 varieties and let all the less hardy ones self destruct. I'm down to about 20 varieties now, with around 10 of those being strong and reliant. Appears maybe the aeae is a waste of time and money for me... Thanks for the insight.