I got a zebrina banana which has a little pup. How do I separate it? Or should I wait for it to grow bigger?

How tall do these get btw? I've read contradictory things.

When the pup of your Blood Banana (Musa acuminata 'Zebrina') is about 2 feet in height, it can be removed by cutting it away from the mother plant and then digging it up with a good size piece of the rhizome and roots attached.

OK, the mother is not even 2 feet tall.

Oh my, I wouldn't remove a pup if the mother is still a pup herself; wait awhile so that you don't stress the mother plant or the offset.

Great advice Lin

OK although the instructions thta came with it said it grows only a few feet tall.

Ummmmm unless its some sort of new dwarf variety no, Musa zebrina can get to 10 feet or so, taller when planted outdoors in no-freeze conditions

I've heard of dwarf varieties of Musa (Banana) but even those grow 6 to 8 feet or so; I've never seen or heard of one that will remain at 2 feet in height. The cultivar 'Zebrina' grows 4 to 6 feet tall.

Are you certain the plant you received is Musa Zebrina? Can you upload a photo?

Here it is next to its older cousin.

Well, its not highly colored at all. It doesn't look like mine. I may have a different cultivar than you. Mine is called 'Bloodleaf' as a 'common' name

The dwarf varieties of Musa are often sold for use as indoor ornamental plants. Indoors they don't get as large as they would outdoors.

The pups can be separated at any time, but be careful and do it only when the mother plant is healthy and growing vigorously.

OK thanks. It seems to me I should repot it (the one on right) cause it looks very dense.

This is the one you need LOL, Musa laterita, 'Bronze'. Nice ornamental for the yard

It is the size of the roots relative to the volume of soil that determines when it needs a larger pot. If you need to water it thoroughly more than twice weekly, then it is probably ready for a pot one size larger. If you repot, avoid disturbing the rootball and use a pot with drain holes.