While you can’t save a dead bamboo plant, you can take action to save a dying one and revive it. Finding out what is killing your bamboo is the first step toward ensuring it will survive and thrive. If your plan's thirsty, add more water. Should the soil be waterlogged, stop watering and add moss and bark to potted bamboo to ensure the roots can drain effectively. Also follow up on the soil pH, ensuring it’s a slightly acidic 6.0, and ensure you provide organic fertilizer to maintain your bamboo’s nutrient levels. Provide good quality lighting to ensure your bamboo can produce nutrients with photosynthesis.