My bamboo plant at work hasn't done much. I was told that it does not need any fertilizer, so I didn't give it any. But then I started thinking. I needs something to "eat"; maybe just not much. So I took a pinch of house plant fertilizer and diluted it in a 20 oz soda pop bottle. Every few days as I need to add water to replace water that has been used by the plant or evaporated, I use the week fertizer solution. I started this a couple of weeks ago, and the plant has started a growth spurt! I think I notice new growth daily. So if you have some bamboo, try watering it with a very week solution. You can barely tell that the water I use has a slight blue hue to it.