Throughout their whole life cycle, banana plants need between 900 and 1200 mm of water, which may be provided by both rainfall and supplemental irrigation.
In order to encourage better development and increase production, maintaining ideal moisture levels at all phases of growth is crucial, and providing appropriate drainage facilities to drain excess water from the root zone is equally vital.
In general, it is advised to irrigate banana plants every three to four days during hot weather and every seven to eight days during cooler weather.