Drooping Leaves on Banana Plants
Banana leaves naturally arch and droop to some degree — they are large, heavy structures. But if leaves are drooping more than usual or collapsing, something is off.
Causes
Underwatering
The most common cause. Banana leaves droop dramatically when the plant is water-stressed. Water deeply and the leaves often perk back up within hours.
Overwatering / Root Rot
If the soil is wet and the leaves are still drooping, the roots may be damaged. See Root Rot.
Cold Shock
A sudden drop in temperature causes leaves to droop and go limp. If the pseudostem is still firm, the plant usually recovers when warmth returns.
Transplant Shock
Newly planted or recently divided bananas often droop for a week or two as they establish roots. Keep the soil moist and provide shade for a few days if it is very hot.
Wind
Heavy wind can mechanically force leaves into a drooping position. See Wind Damage.