Overwintering Basjoo Pseudostem in ground in zone 6b?
I was wondering if anyone has attempted and succeeded in overwintering the pseudostem of Musa Basjoo in the ground in zone 6. I would like to try this, so that mine can reach its full potential height of 12-15 feet next summer. Right now, my larger basjoo is about 7 feet tall, and I'm figuring it will max out at no more than 7.5 to 8 feet tall before the frost hits. Is this possible, and what method does one use? Will it be taller next year even if I decide to cut it down to the ground and mulch just because it will have a bigger root system?