I can't belive that one in the middle looks like it grows out of old one.
I just repoted mine few days ago in a bigger pot btw. I checked for sucker's roots and unfortunately it doesn't have any yet.
Still grows out directly out of mother plant aprox. 4 inches under ground, so i left it attached to mother for now will wait another month or so then i will check again.
Would be nice to have extra banana
