Then you need to go dwarf, so Dwarf Namwah.

Well the greenhouse is 12ft tall and i can make a big pot.

John

Hi John,

the red abyssinian (ensete maurellii) is my favorite. The huge leaves and the coloring can't be beat!

Boca Joe

Well i want a banana that has the best fruit.

John

12' of greenhouse gets you about 7-8' of trunk, and 4-5' for leaves. So that still leaves you with a dwarf variety.

Perhaps a dwarf cavendish would work for you? They are tasty and not too tall. Williams are tasty, but they get pretty tall.