Giant Knotweed Identification

giant knotweed identification, dense growth.

Leaves

Like its cousin Japanese Knotweed, Giant Knotweed is a perennial plant which will form dense thickets. Leaves are larger than those of Japanese Knotweed - up to 40cm in length, with fine hairs on the underside. 

Height

Giant Knotweed stems are similar in appearance to bamboo, and can often reach over 4 metres in height!   

Where you'll find Giant Knotweed

Often found on riverbanks, lakes and loch shores. Giant Knotweed is much less common than its cousin!

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Howard Downer

THE EXPERT DR. KNOTWEED

Howard Downer, AKA Dr. Knotweed, has over 20 years of experience as an Environmental Consultant and is regarded by his peers as one of the most knowledgeable people in the Japanese knotweed industry.

Follow Dr. Knotweed to hear about the latest developments regarding Japanese knotweed and the implications of infestation.

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