Humphries, R.N. Buddleja davidii is a shade-intolerant woody weed from China, which, with small wind-dispersed seeds, rapidly colonises bare or disturbed sites. ), © 2006-2020 California Invasive Plant Council. Points: 1. Plant Risk Assessment - An evaluation of the potential for a plant to be invasive in California. Buddleia is native to China and Japan and was introduced to the UK at the end of the 19th century as an ornamental garden plant. According to the U.S Forest Service, Invasive species have contributed to the decline of 42% of U.S. endangered and threatened species, and for 18% of U.S. endangered or threatened species. There are no Symposium presentations associated with this species yet. Buddleia davidii; common name butterfly bush) is a perennial, semi-deciduous, multi-stemmed shrub that is resident in gardens and disturbed areas. In it they point out the weed capabilities of B. davidii, recalling that it was introduced into Great Britain at the end of the 19th century, and by the middle of the 20th century it had thoroughly naturalized the wastelands of southern England. Buddleja davidii, commonly called butterfly bush, is a deciduous shrub that is native to thickets on mountain slopes, limestone outcrops, forest clearings and rocky stream banks in China. Butterfly bush is on the state quarantine list, and it is illegal to buy, sell or offer this plant for sale in Washington.For more information see Noxious Weed Lists and Laws or visit the websit… 75, 292–325. For more information, visit Invasive.org, Other Common Names: orange eye butterflybush, summer lilac, Related Scientific Names: Reclam. Now it is listed among the top 20 invasive weeds in England. It produces small seeds that are easily distributed. 20. Its scientific name is Buddleja davidii and it is known by other common names such as budelia, budleja, butterfly flower and summer lilo. Reveg. Buddleja davidii readily invades disturbed sites and riparian areas. 1994. Buddleja davidii readily invades disturbed sites and riparian areas. Buddleja davidii was considered in 2015 but not added as a candidate plant to the survey because more research is needed about the invasive risk of the various cultivars of Buddleja davidii, and because it has only naturalized in some locations on the coast of California. Presentations are linked where available. Buddleia davidii; common name butterfly bush) is a perennial, semi-deciduous, multi-stemmed shrub that is resident in gardens and disturbed areas. It is on the Non-Regulated Noxious Weed List for King County, Washington. In Oregon, butterfly bush invades disturbed areas, particularly riparian areas. Butterfly bush (Buddleia davidii) is a deciduous shrub with an arching habit and impressive flowers, but it has a mixed reputation.It's easy to grow and produces striking flower spikes. & Guarino, L. (1987) Soil nitrogen and the growth of birch and buddleja in abandoned chalk quarries. It is native to China. A single flower cluster of Buddleia davidii 'Potter's Purple' can make up to 40,000 seeds! Seeds can be carried long distances and proliferate in open areas like roadways, waterways and pastures. See pictures of the best non-invasive butterfly bushes including ‘Miss Molly’ and the Lo … The OSU Extension Service Master Gardener Program no longer recommends it for butterfly gardens because of its invasiveness. And it is this species with its many cultivars that could also be named a ‘beast’. By replacing native larval food source plants butterflybush can have a negative impact on wildlife. Buddleia davidii is the most often found type of the Butterfly Bush found in British gardens and has been widely planted wildlife gardens for it’s nectar rich flowers. In addition to ODA's "B" noxious weed listing, Buddleja davidii appears on the "Most Invasive" species list of the Pacific Northwest Exotic Pest Plant Council and the Native Plant Societies of Oregon and Washington. Seeds are retained on the plant over the winter and they are released in early spring or summer. Butterfly bush (Buddleja davidii) is a deciduous to semi evergreen shrub that grows up to 5 m tall.Until only recently, this species was celebrated for its robust growth, fragrance, and range of bloom colours, and often recommended for its ability to grow in poor soil and to attract butterflies. But Buddleja davidii, to give its latin name, which originated in China, is viewed by the Department for the Environment, Food and Rural Affairs (Defra) as an invasive non-native species. Buddleia davidii Franchet (Synonym), Last updated October 2018 / Privacy It is widely used in all the gardens of the world for being quite resistant. Borne at the tips of current year's growth, the huge flower spikes, up to 15 in. It forms dense thickets, especially along river banks and gravel bars, which Buddleja davidii, commonly called butterfly bush, is a deciduous shrub that is native to thickets on mountain slopes, limestone outcrops, forest clearings and rocky stream banks in China. A species of weevil, Cleopus japonicus (Coleoptera: Curculionidae), was tested as a potential biological control agent for B. davidii. The Invasive Buddleja davidii (Butterfly Bush). It is the butterfly bush. Buddleja davidii Franchet (Synonym. Control of butterfly bush in King County is recommended but not required. Award-winning Buddleja davidii 'Pink Delight' (Butterfly Bush) is a medium-sized deciduous shrub with gracefully arching branches, studded with lance-shaped, gray-green leaves with white-felted undersides, and sweetly scented, slender panicles of bright pink flowers. It favors riparian and bottomland habitat. It has become increasingly clear that Buddleia davidii can be highly invasive. It typically grows to 6-12’ (less frequently to 15’) tall with a spread to 4-15’ … Buddleja davidii (butterfly bush) is a shrub (family Buddlejaceae) with a cluster of pink to purple flowers and narrow leaves found in the San Francisco Bay area and coastal ranges of California, and is invasive in the Pacific Northwest. Discover why Buddleia is irresistible to pollinators and how to keep them blooming longer. It produces lots of small, light seeds, which spread extremely easily. The species Buddleia davidii produces copious seeds that sprout easily and are invasive. Since its introduction to the United Kingdom from China in the late 1800s, B. davidii has become an important component in horticulture and human culture. In fact, Buddleja davidii (the scientific name for butterfly bush) has certain traits that make it invasive in most environments. Tests showed that feeding damage caused by the weevil can result in a significant (You can unsubscribe anytime. Buddleja davidii has been classified as an invasive species in many countries in temperate regions, including the United Kingdom and New Zealand. Where a presentation is not available, find more information by reading the abstract in the Cal-IPC Symposia Archive. University of Washington Ph.D. dissertation. Buddleia davidii – the Original Butterfly Bush. Botanical Review. Sign up to receive information about Cal-IPC's upcoming events and project updates. 6: 55-61. It can grow in … Buddleja davidiiFranchet (Synonym. Oecologia 153: 501-510. 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Swearingen, Survey of invasive plants occurring on National Park Service lands, 2000-2007, Jil Swearingen, personal communication, 2009-2017, Kentucky Exotic Pest Plant Council - Moderate Threat, Maryland Department of Natural Resources Policy: Restriction on Planting Exotic Invasive Plants, National Park Service, Mid-Atlantic Exotic Plant Management Team Invasive Plant List, National Park Service, National Capital Region Exotic Plant Management Team Invasive Plant List, New Invaders of the Northeast and Northcentral, New Jersey Invasive Species Strike Team 2017 Invasive Species List, Non-Native Invasive Plants of Arlington County, Virginia, Non-Native Invasive Plants of the City of Alexandria, Virginia, Nonnative Invasive Species in Southern Forest and Grassland Ecosystems, Pacific Northwest Exotic Pest Plant Council, 1998, Pennsylvania Department of Conservation and Natural Resources Invasive Plants. Since its introduction to the United Kingdom from China in the late 1800s, B. davidiihas become an important component in horticulture and human culture. Although butterflies will use this plant as a nectar source their larvae cannot survive on it. Butterfly bush is a Class B noxious weed on the Washington State Noxious Weed List. Butterfly bush (Buddleja davidii), an ornamental native to China, is an invasive species in Oregon and many other areas. Buddleja davidii butterfly bush This plant can be weedy or invasive according to the authoritative sources noted below.This plant may be known by one or more common names in … Learn how to plant, care for and prune butterfly bush in your garden. In this post you will be able to know all the characteristics and care of Buddleja davidii. Details B. davidii is a large, fast-growing, deciduous shrub, to 3m tall, with long, arching shoots and lance-shaped, pointed, green or grey-green leaves up to 25cm long. 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