Tips for growing bamboo in water include using 1 to 3 inches of water before the roots grow out, and then increasing the depth of the water periodically to make sure that the roots remain underwater. Using fluoride-free bottled water is healthier for the plant.
Putting stones in the water to support the plants helps to strengthen their stems. Bottled water helps to eliminate dead, drying leaves on the bamboo. Ongoing care for bamboo plants growing in water includes changing the water once a week, and placing the plant in bright, indirect light. Only fertilize the plant if it yellows, and only use organic fertilizer.