A quarter of people who think they have Japanese knotweed in their garden actually have a harmless plant growing, according to new research, which makes knowing how to identify the species even more ...

There are few garden discoveries more disappointing than realizing that the beautiful plant in your yard is actually Japanese knotweed (Polygonum cuspidatum), an invasive plant that is a problem in ...

The USDA affirmed Monday that a leaf-eating insect from Asia can be turned loose on knotweed, an invasive plant that’s cost more than $30 million over the past 15 years to control in Washington. The ...

In the past couple of weeks, my travels have taken me up and down routes I-95, 1, 1A, 109 and many back roads, especially in Norwood, Westwood, Walpole, Medfield and Needham. The red Japanese maples ...

Holly — Save for the rustling of leaves, Andrew Yoshimoto was invisible to drivers whizzing past on Interstate 75. The Michigan State University graduate student was concealed by a thick stand of ...