30-40cm. Dwarf ornamental bananas seldom reach more than 80cm in height
Bananas originate in open ground in the warm, humid tropics, they require high light, lots of water and high humidity to thrive.
Banana plants are fast growing and do not usually live for more than two or three years. Sometimes the leaves may tear, especially if they are frequently knocked by passers-by or placed near a draught. Banana plants come from the typhoon belt of the Asian tropics where the leaf tearing helps them to withstand strong winds.