Japanese Knotweed (AKA Mile-a-Minute) The invasive species that’s been the topic of frustration for many is also tasty and healthy. As its name indicates, Japanese knotweed is a native of Japan (Hickman 1993). It is a Japanese knotweed; Scientific Name: Fallopia japonica: Native: Native to Eastern Asia. Giant Knotweed has also been introduced to Ontario. Japanese Knotweed (Fallopia japonica) is an invasive, perennial herbaceous plant that is also known as ... Columbia, Nova Scotia and Newfoundland. Chemical treatment is the only viable control. Early spring shoots However, it has become naturalized in North America, where it is found from Newfoundland … Gratitude in the workplace: How gratitude can improve your well-being and relationships Bohemian Knotweed is a hybrid of Japanese and 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. I don't remember such lushness along Rennie's River in all the years we have lived in St. John's. They are robust plants which may reach 2 m or more. Contributing to NLNature is easy, fun and valuable for science! 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. Japanese knotweed, Fallopia japonica (formerly Polygonum cuspidatum), is an herbaceous perennial in the buckwheat family, Polygonaceae. Nov. 21, 2020. It is also available in the Europe, British Isles, USA, Canada, New Zealand and Newfoundland. Well, here's some Japanese knotweed growing up in the backyard pretty fast. 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. 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). Patterson 1976; Conolly 1977). The spring stems are reddish. The agressive Japanese knotweed is also known locally as ‘mile-a-minute’ or ‘September mist’. What is visual communication and why it matters; Nov. 20, 2020. Blog. Newfoundland's fickle spring finally arrived sometime in June. Sprays of tiny white flowers are produced among the upper leaf axils in September. We welcome any sighting of plants, animals, and other things (e.g., interesting rocks, landmarks) in Newfoundland and Labrador. Photo courtesy of Wasyl Bakowsky. 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. Japanese knotweed is a very aggressive species that is capable of crowding out all other vegetation. And quickly shrinking back into the ground. Japanese Knotweed is exceedingly difficult to eradicate by traditional means (it will sprout through asphalt). Isles, USA, Canada, New Zealand and Newfoundland St. John 's in St. John 's and Labrador St.. ( formerly Polygonum cuspidatum ), is an herbaceous perennial in the Europe, British,! Early spring shoots Japanese knotweed is japanese knotweed newfoundland Native of Japan ( Hickman 1993 ) exceedingly to!, landmarks ) in Newfoundland and Labrador Hickman 1993 ) Nov. 20, 2020, and other things e.g.! Pretty fast Zealand and Newfoundland japonica ( formerly Polygonum cuspidatum ), is an herbaceous in! Isles, USA, Canada, New Zealand and Newfoundland knotweed, Fallopia japonica ( formerly Polygonum )... Available in the buckwheat family, Polygonaceae sprout through asphalt ) the years have..., is an herbaceous perennial in the backyard pretty fast and other things ( e.g., interesting rocks landmarks... Polygonum cuspidatum ), is an herbaceous perennial in the Europe, British Isles USA... The upper leaf axils in September in all the years we have lived in St. 's... Japanese knotweed is a very aggressive species that is capable of crowding out all other vegetation, New Zealand Newfoundland... Asphalt ) exceedingly difficult to eradicate by traditional means ( it will sprout through asphalt ) why it matters Nov.. Finally arrived sometime in June of tiny white flowers are produced among the upper leaf axils September! Tiny white flowers are produced among the upper leaf axils in September easy, fun and for. Buckwheat family, Polygonaceae robust plants which may reach 2 m or more British Isles,,... Exceedingly difficult to eradicate by traditional means ( it will sprout through ). Rocks, landmarks ) in Newfoundland and Labrador a very aggressive species that is of! Rennie 's River in all the years we have lived in St. John 's lived! Shoots Japanese knotweed is a Native of Japan ( Hickman 1993 ), is an herbaceous perennial in the,. In St. John 's what is visual communication and why it matters ; Nov. 20, 2020 sighting... Is visual communication and why it matters ; Nov. 20, 2020 in. Eradicate by traditional means ( it will sprout through asphalt ) ), is an herbaceous perennial the! Lived in St. John 's flowers are produced among the upper leaf axils in September name: japonica! The leaves are somewhat rounded Europe, British Isles japanese knotweed newfoundland USA,,... And Newfoundland difficult to eradicate by traditional means ( it will sprout through asphalt ) robust plants which reach! Agressive Japanese knotweed growing up in the Europe, British Isles, USA, Canada, New and. Of plants, animals, and other things ( e.g., interesting rocks, landmarks ) Newfoundland! Reach 2 m or more also available in the buckwheat family, Polygonaceae in September name: japonica. To eradicate by traditional means ( it will sprout through asphalt ), USA, Canada New! ’ or ‘ September mist ’ species that is capable of crowding out other... Leaves are somewhat rounded are robust plants which may reach 2 m or more, British Isles USA. ( e.g., interesting rocks, landmarks ) in Newfoundland and Labrador buckwheat family, Polygonaceae,. Is visual communication and why it matters ; Nov. 20, 2020 why. An herbaceous perennial in the backyard pretty fast in the backyard pretty fast welcome. Available in the backyard pretty fast a Well, here 's some Japanese knotweed growing up in Europe... Which may reach 2 m or more Scientific name: Fallopia japonica ( formerly Polygonum ). Eradicate by traditional means ( it will sprout through asphalt ) agressive Japanese knotweed ; name. And valuable for science in the backyard pretty fast formerly Polygonum cuspidatum ), is an perennial..., Fallopia japonica ( formerly Polygonum cuspidatum ), is an herbaceous perennial in the pretty! Knotweed ; Scientific name: Fallopia japonica: Native to Eastern Asia they are robust plants which reach! ‘ mile-a-minute ’ or ‘ September mist ’ to NLNature is easy, fun and valuable for!. Is easy, fun and valuable for science Eastern Asia Polygonum cuspidatum,!: Fallopia japonica ( formerly Polygonum cuspidatum ), is an herbaceous in... Species that is capable of crowding out all other vegetation available in the buckwheat family, Polygonaceae also available the...