21 April 2012: I successfully protected them up to around 2ft, and they are already getting up to 4ft within a week.
12 June 2012: After another 7 weeks, these guys doubled up in height reaching around 8ft.
7 July 2012: The one on the right side is starting to pull ahead by a bit, reaching the 10ft mark while the one on the right is still around 8.
28 July 2012: These guys seem to be gaining about 1ft every 3 weeks, and the pups are really starting to put on size.
19 August 2012: The one on the right is up to 12ft now while its tallest pups are getting near the 6ft mark.
23 September 2012: The bigger one is breaking the 13ft mark while the smaller one is about 2ft behind. The diameter of the pseudo-stem on the right side banana is now up to around 8.5 inches. It's very hard to get an accurate measurement on the leaves as they aren't always pointed up, but I believe that some of of these leaves pointed up may have gotten near the 14ft mark which is still not near the size potential of this banana. It got up to around 10 1/2ft last year, and 5ft the year before then so they will likely keep getting bigger each year. I am also starting to give the pups away.
3 October 2012: These bananas are just about done with their growth as the taller one is topped off between 13 and 14ft tall, and the other one about 2ft behind. I dug out and gave away all the larger pups as it will be very hard to over-winter all of them, and each banana plant happened to produce around a dozen pups this year starting with none.
Here are the older blog posts on the musa basjoo.
This winter, I plan on over-wintering as much corm as possible with 4ft tall 55 gallon plastic rain barrels in my setup.