Blog. Japanese Knotweed, locally referred as Mile-a-Minute, is a fast growing plant that can quickly take over a backyard garden in just a season. Contributing to NLNature is easy, fun and valuable for science! Photo courtesy of Wasyl Bakowsky. Japanese Knotweed (AKA Mile-a-Minute) The invasive species that’s been the topic of frustration for many is also tasty and healthy. Patterson 1976; Conolly 1977). Early spring shoots It is a However, it has become naturalized in North America, where it is found from Newfoundland … Bohemian Knotweed is a hybrid of Japanese and They are robust plants which may reach 2 m or more. Well, here's some Japanese knotweed growing up in the backyard pretty fast. Japanese knotweed; Scientific Name: Fallopia japonica: Native: Native to Eastern Asia. Nov. 21, 2020. Gratitude in the workplace: How gratitude can improve your well-being and relationships Japanese knotweed is a very aggressive species that is capable of crowding out all other vegetation. Japanese Knotweed is exceedingly difficult to eradicate by traditional means (it will sprout through asphalt). Chemical treatment is the only viable control. What is visual communication and why it matters; Nov. 20, 2020. The agressive Japanese knotweed is also known locally as ‘mile-a-minute’ or ‘September mist’. I don't remember such lushness along Rennie's River in all the years we have lived in St. John's. We welcome any sighting of plants, animals, and other things (e.g., interesting rocks, landmarks) in Newfoundland and Labrador. Japanese Knotweed (Fallopia japonica) is an invasive, perennial herbaceous plant that is also known as ... Columbia, Nova Scotia and Newfoundland. It is also available in the Europe, British Isles, USA, Canada, New Zealand and Newfoundland. As with Poison Ivy, Glyphosate (Round Up) is the product of choice for Japanese Knotweed, and the timing is the critical factor in successful control. NLNature ( www.nlnature.com ) is an online atlas of wildlife in Newfoundland and Labrador based on observations by residents and tourists. Mature stalks are hollow and the leaves are somewhat rounded. The spring stems are reddish. In North America, knotweed is found from Nova Scotia and Newfoundland south to North Carolina, throughout most of the Midwest, and in the coastal areas of Oregon and Washington (Patterson 1976; Locandro 1978; Pauly 1986). Newfoundland's fickle spring finally arrived sometime in June. Japanese knotweed, Fallopia japonica (formerly Polygonum cuspidatum), is an herbaceous perennial in the buckwheat family, Polygonaceae. Giant Knotweed has also been introduced to Ontario. Sprays of tiny white flowers are produced among the upper leaf axils in September. As its name indicates, Japanese knotweed is a native of Japan (Hickman 1993). 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