Pull the bamboo plant from the existing pot. Use a small shovel to remove the soil around the root ball and carefully lift the plant from the pot, taking care not to grasp the root ball itself.
Remove any excess soil from the root ball, and place the bamboo plant into a bucket of water while the larger pot is prepared.
Cover the bottom of a pot that is approximately 2 to 3 inches larger in diameter than the bamboo plant’s root ball with a 2-inch layer of rocks. Fill the pot with organic, fast-draining soil. Dig a hole in the soil that is approximately 1 inch deeper and wider than the root ball.
Insert the bamboo plant into the soil. Cover the root ball with the organic, fast-draining soil. A bamboo that is housed in a 5-gallon pot or larger requires one gallon of water twice a week. A plant housed in a pot smaller than 5 gallons requires a half-gallon of water twice a week.