Q. We are seeking your advice concerning a problem with neighbors who share a common fence-line who have planted invasive plants (bamboo) against this fence. The large strong roots are invading our yard and landscape. Recently they planted several more bamboo trees, which will eventually invade the rest of our yard. Do you know how we can successfully stop these roots? Are there any property laws that would deal with this situation? We would appreciate any advice you can give us. Concerned Homeowners Ron and Barbara Bishop – Tacoma
A. I can sympathize with your situation. Running bamboo can be a very invasive plant when not contained. There are clumping types of bamboo that are not considered invasive. Unfortunately you don’t know which the new bamboo is. Since the existing plants are running you may have to assume the new bamboo is as well. Periodic root pruning of the fence line with a shovel is a good short-term solution but will get old very fast especially where existing plantings are located. The typical solution to controlling running bamboo is to install a root or rhizome barrier. These can be made from metal, plastic and sometimes concrete. They provide a barrier below the soil line any where from 2-3 feet deep and usually above the soil line up to 6 inches. Jade Mountain Bamboo (548-1129) in Tacoma can help you select the best barrier. I am not cognizant of the current laws in Tacoma regarding your situation so you will have to investigate that yourself.