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. What is visual communication and why it matters; Nov. 20, 2020. Chemical treatment is the only viable control. Contributing to NLNature is easy, fun and valuable for science! They are robust plants which may reach 2 m or more. Japanese knotweed is a very aggressive species that is capable of crowding out all other vegetation. Japanese Knotweed (Fallopia japonica) is an invasive, perennial herbaceous plant that is also known as ... Columbia, Nova Scotia and Newfoundland. Photo courtesy of Wasyl Bakowsky. It is a Sprays of tiny white flowers are produced among the upper leaf axils in September. Japanese Knotweed is exceedingly difficult to eradicate by traditional means (it will sprout through asphalt). I don't remember such lushness along Rennie's River in all the years we have lived in St. John's. 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. As its name indicates, Japanese knotweed is a native of Japan (Hickman 1993). Bohemian Knotweed is a hybrid of Japanese and The agressive Japanese knotweed is also known locally as ‘mile-a-minute’ or ‘September mist’. Nov. 21, 2020. Japanese knotweed; Scientific Name: Fallopia japonica: Native: Native to Eastern Asia. NLNature ( www.nlnature.com ) is an online atlas of wildlife in Newfoundland and Labrador based on observations by residents and tourists. Giant Knotweed has also been introduced to Ontario. Gratitude in the workplace: How gratitude can improve your well-being and relationships Blog. Japanese knotweed, Fallopia japonica (formerly Polygonum cuspidatum), is an herbaceous perennial in the buckwheat family, Polygonaceae. Well, here's some Japanese knotweed growing up in the backyard pretty fast. The spring stems are reddish. Mature stalks are hollow and the leaves are somewhat rounded. 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). 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. 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. Early spring shoots We welcome any sighting of plants, animals, and other things (e.g., interesting rocks, landmarks) in Newfoundland and Labrador. It is also available in the Europe, British Isles, USA, Canada, New Zealand and Newfoundland. And quickly shrinking back into the ground. 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