Japanese Garden in Containers: Plant the Bamboos Place broken clay pot pieces in the base of a pot and add a layer of soil. Water the bamboo, remove it from its pot and set in the center of the container. Fill in around it with soil and some fertilizer. Firm in and water. Bamboos are thirsty, so water often. Since they grow vigorously, lift, divide and repot them in new soil every three or four years.