Urine and Trees
Date: Fall 2011
Can dog urine kill trees?
Urine does have quite a bit of urea, which is a type of nitrogen. Nitrogen is a very important plant food, but it’s concentrated – so it can burn plant roots. Usually it needs to be diluted with water. If you have dogs who have taken a liking to a tree, I would advise training them to urinate on a compost pile instead! The nitrogen helps to feed microbes that break down the compost.
Dr. Tim Durham
Instructor, Office of Curriculum and Instruction
Department of Biological Sciences
Florida Gulf Coast University
Click here to return to the Botany Archives
Update: June 2012