And quickly shrinking back into the ground. 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. Photo courtesy of Wasyl Bakowsky. Japanese knotweed is a very aggressive species that is capable of crowding out all other vegetation. I don't remember such lushness along Rennie's River in all the years we have lived in St. John's. Japanese Knotweed (AKA Mile-a-Minute) The invasive species that’s been the topic of frustration for many is also tasty and healthy. Japanese knotweed; Scientific Name: Fallopia japonica: Native: Native to Eastern Asia. Nov. 21, 2020. Chemical treatment is the only viable control. It is also available in the Europe, British Isles, USA, Canada, New Zealand and Newfoundland. Gratitude in the workplace: How gratitude can improve your well-being and relationships It is a Sprays of tiny white flowers are produced among the upper leaf axils in September. They are robust plants which may reach 2 m or more. Contributing to NLNature is easy, fun and valuable for science! Japanese knotweed, Fallopia japonica (formerly Polygonum cuspidatum), is an herbaceous perennial in the buckwheat family, Polygonaceae. The agressive Japanese knotweed is also known locally as ‘mile-a-minute’ or ‘September mist’. Japanese Knotweed is exceedingly difficult to eradicate by traditional means (it will sprout through asphalt). Well, here's some Japanese knotweed growing up in the backyard pretty fast. Early spring shoots 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. Mature stalks are hollow and the leaves are somewhat rounded. However, it has become naturalized in North America, where it is found from Newfoundland … We welcome any sighting of plants, animals, and other things (e.g., interesting rocks, landmarks) in Newfoundland and Labrador. Bohemian Knotweed is a hybrid of Japanese and What is visual communication and why it matters; Nov. 20, 2020. The spring stems are reddish. Patterson 1976; Conolly 1977). Japanese Knotweed (Fallopia japonica) is an invasive, perennial herbaceous plant that is also known as ... Columbia, Nova Scotia and Newfoundland. Giant Knotweed has also been introduced to Ontario. As its name indicates, Japanese knotweed is a native of Japan (Hickman 1993). NLNature ( www.nlnature.com ) is an online atlas of wildlife in Newfoundland and Labrador based on observations by residents and tourists. Many people think it is some kind of bamboo because of its hollow stems and raised stem nodes, but it has no relation to true bamboo, which is actually a grass. Newfoundland's fickle spring finally arrived sometime in June. 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