Ask The Plant Expert:
I over-fertilized my lucky bamboo killing the roots and turning most of the stem yellow, I put it in fresh water, is there anything else I can do? After I put it in fresh water, I looked a couple days later and the water was blue again, I must have really overfertilized it a lot. – Marina
Flower Shop Network Plant Expert Reply:
Because they do not require much fertilizer, over-fertilizing is easy to do with lucky bamboo. Unfortunately once the stem has turned yellow, especially from the roots, that part cannot be recovered. However, you might still be able to save your lucky bamboo plant!
If caught early and you notice just a small amount of yellow, change the water (distilled water) and move to a place with a little less light.
If it is worse than that, but there is still green up top, cut off the bottom and place it in a new container with fresh water. Also, stay away from fertilizing it for a while as well.
Hope this helps!