Nice find, congrats!!!!
I like how you planted it. I probably would have smuggled it home with me. I have been known to do that with banana plants, lol.
By the way, you aren't the first of our members to find banana plants washed up on the beach!
Check out Cassie's thread, she found one in the Dominican Republic:
Guess what I found!
Daen found a few tonnes of banana fruits washed up there in the Netherlands:
banana coast
Too bad he used photobucket and the pics are now gone. I made his avatar for him out of one of the pics before they were deleted, so at least you can still see one of them.