Lagniappe

I can say That Ensete Maurelii outpaces all of my Musa in terms of hardiness and growth (emerging even earlier than Basjoo). They do seem to have a ceiling though. Maurelii is the first plant to emerge here in the spring and gets at least 6 leaves on it before the Musa emerge.
Ensete Glaucum does well without any mulch here in zone 8a.
I can't say about E.ventricosum because mine went from seed to bloom in a few months. They bloomed at 6' and were very large plants. I suspect that these were Superbum that were mislabled though.
This year, I have many Maurelii plantlets and Ventricosum seedlings that will be left out to test the hardiness of the smaller plants.