READ ON FOR THOSE WHO HAVE PLANTED THE BAMBOO IN POTS
Like all potted plants especially vigorous plants like bamboo, you will really need to water every day in hot dry weather. In the cooler months, just water as and when is necessary, in Winter watering isn't generally required. If the bamboo haven't yet been potted in to larger pots we certainly recommend you doing this as soon as possible. Bigger pots can hold more water and will be easier to look after.
SKIP TO HERE FOR THOSE WHO HAVE PLANTED BAMBOO IN THE GROUND
Bamboo planted in the ground will still need regular watering until established. So a good soaking every couple of days will be important. The watering can be gradually phased out as the bamboo becomes established, (this can take up to 4-6 weeks). Once established the bamboo will be pretty well self-sufficient and will use its own roots to go off in to the soil to find moisture.
Lastly rain is nowhere near as effective at watering your plants as you are. You really do need a sustained period of heavy rain to equal what you could do with a hose or watering can.