How regularly should i hose down my Banana Palms? thanks...

thanks...
Can anyone recommend a really nice, heat, and...
Answers:    depends where on earth you live and how's the weather I mean as far as humidity, precipitation and sun you're getting.. right now surrounded by my area Central Florida, planting zone 9 we're surrounded by a severe drought for the past 2 yrs so watering twice a week is a must and probably every 2 days if the trend verbs.
What compassionate of bug is this?