Identifying Japanese Knotweed Winter isn’t difficult if you know what to look for. The plant’s leaves have a distinctive brown color, and the stems are hollow. Its canes are zigzag-like, and the leaves turn dark brown. You can also see dead canes underneath. During the cold season, the canes remain upright and may be a clue as to the species.

How to Identifying Japanese Knotweed During Winter

When identifying Japanese knotweed during winter, you can easily identify the plant by the stem. During spring, the stems are reddish brown, and resemble bamboo stems. The stems are hollow inside and easily snap. However, the colour does not remain consistent throughout the year. The stems of Japanese knotweed turn brown and brittle during the winter season. Because the plant’s stems are so fragile, they are difficult to recognize during the winter.

Identifying Japanese knotweed during winter is easy, too. The plant’s stems are zigzagging and have nodes around them. The flowers are crumbled, and the stalks of the plants are hollow. While you’re identifying the plant, be sure not to spread the seeds or fragments. You can identify Japanese knotweed by its stems and leaves. If you think you’ve identified the plant, check your boots and clothes for pieces of it.

When it comes to identifying Japanese knotweed, it’s best to wait until it starts to grow above ground. Its shoots generally appear at the base of old canes and are 1-2cm wide. If you can identify the roots, you can remove them. If you don’t want to disturb the plants, you should wait until they die back in the winter. During the winter, they’re only visible as brown canes.