, Roskov Y, Abucay L, Orrell T, Nicolson D, Bailly N, Kirk PM, Bourgoin T, DeWalt RE, Decock W, De Wever A, Nieukerken E van, Zarucchi J, Penev L, 2018. Removal by hand can help encourage the growth of native species, but is unlikely to eliminate C. terniflora entirely due to root re-sprouting and prolific seed production. It is suggested that repeat applications will be required to control this plant where it is invasive (Langeland and Meisenburg, 2009). October 2013., Han Yan, Kitaoka, F., Mano, M., Sasaki, Y., Mikage, M., 2013. In Korea, C. terniflora is used to treat dysentery, neuralgia and gynecological problems (Burnham, 2013). Invasive Plant List. ZooKeys, (No.621), 1-14., Farmer, S., Ward, J. R., Horton, J. L., Clarke, H. D., 2016. She was even wrapped around the cable wire! St. Louis, MO, USA: Missouri Botanical Garden., PFAF, 2012. It blooms on new growth, so this won't affect flowering. It can self-seed, and has escaped cultivation and naturalized in many parts of the USA. I suggest you cut it to near the ground and let it grow back the following year. ITS analysis of Clematis plants from East Asia and the botanical origin of Clematidis Radix sold in modern markets. Beltsville, USA: National Germplasm Resources Laboratory., USDA-NRCS, 2018. The Florida Exotic Plant Pest Council., Flora of China Editorial Committee, 2018. When C. terniflora was grown under natural photoperiods of at least 14 h, flowering was favoured by day/night temperatures of 24/19˚C and 30/25˚C (Suzuki and Hori, 1991). Clematis terniflora is a perennial woody vine, native to Asia and introduced to North America as an ornamental. > 10°C, coldest month < 0°C, wet all year), Grown as an ornamental and used for landscaping in the USA, Used in traditional Chinese medicine and sold in Chinese and Korean markets. Where it is unable to climb, it will sprawl across the ground forming dense, 15-30 cm tall and 3 m wide, clumps (Global Invasive Species Database, 2010; Missouri Botanical Garden, 2018). Invasive Plant Pest Species of South Carolina. Planting for a livable Delaware.,, Swearingen J, Bargeron C, 2016. Stems are 3-6 m, climbing with tendril-like petioles and leaf rachises (Flora of North America Editorial Committee, 2018). It is reported as invasive in Alabama, Delaware, Florida, Georgia, South Carolina and Tennessee in the USA (Alabama Invasive Species Council, 2007; SC-EPPC, 2011; FLEPPC, 2017; GA-EPPC, 2018; TE-EPPC, 2018; Delaware Invasive Species Council, 2019). The species C. virginiana, native to the USA, is very similar to C. terniflora, although it tends to have toothed leaf margins and is not as prone to self-seeding and spreading as C. terniflora (Swearingen and Bargeron, 2016). Wallingford, UK: CABI, CABI, Undated a. CABI Compendium: Status inferred from regional distribution. Seeds of C. terniflora are spread by wildlife and human activity (Skibo, 2006). It can grow in light (sandy), medium (loamy), or heavy (clay) soils that are fairly well drained. In the USA, C. terniflora is found along roadsides and in thickets, forest edges, rights of ways and urban green space, especially near creeks (Swearingen and Bargeron, 2016; Flora of North America Editorial Committee, 2018). Invasive Exotic Pest Plants in Tennessee – 2009. Plants are dormant in winter, making it easier to cut down larger plants at this time (Skibo, 2006). Mount Tado, Yoro Mountains, Kuwana, Mie prefecture, Japan. It grows in forest margins, scrub, grassy areas on hills and slopes, and in disturbed areas such as roadsides, thickets and urban green spaces. South Carolina Exotic Pest Plant Council. Data source for updated system data added to species habitat list. Clematis terniflora is a perennial woody vine, native to Asia and introduced to North America as an ornamental. Flowers are fragrant with four slender white petal-like sepals (Swearingen and Bargeron, 2016) that are obovate-oblong and measure 5-15 x 2-6 mm (Flora of China Editorial Committee, 2018). It does not have particular humidity requirements. However these have now been reduced to synonymy (Flora of North America Editorial Committee, 2018). Beltsville, Maryland, USA: National Germplasm Resources Laboratory. It is also introduced in Canada, Indonesia and Nepal (Roskov et al., 2018). However, C. terniflora was still a significant community component even after removal treatments, suggesting that it is difficult to control (Farmer et al., 2016). Clematis terniflora (sweet autumn clematis); young plants. Powdery mildew, leaf spots, rust, and viruses can also affect the plant, though generally, they are not fatal. Most gardeners cut their sweet autumn clematis plants down to within a foot or so from the ground. Management of Biological Invasions, 7(4), 329-342. doi: 10.3391/mbi.2016.7.4.03, FLEPPC, 2017. December 2009. Botanical Review, 83(3), 215-252. doi: 10.1007/s12229-017-9184-3, USDA-ARS, 2018. As with other clematis species, sweet autumn clematis is prone to clematis wilt, a potentially fatal fungal disease. > 10°C, Cold average temp. But if you're trying to get your vines to cover a large area, such as a big pergola, you can prune less severely and leave more of the plant in place. C. terniflora can aggressively self-seed and invade roadsides, thickets and wood edges near creeks (SC-EPPC, undated). Planting for a livable Delaware. Midwest Invasive Plant List. In: Master Gardener Program, Wisconsin, USA: University of Wisconsin Extension., MIPN, 2018. C. terniflora is still widely available as an ornamental, so it is likely that it will continue to spread into wild areas from gardens, where it is grown. ©Alpsdake/via wikipedia - CC BY-SA 4.0 Flowering habit: Clematis terniflora (sweet autumn clematis); flowering habit. October 2013. Effects of temperature, photoperiod and exogenous gibberellin on flowering of Clematis terniflora DC. It also can cause irritation from skin contact, though not everyone experiences this. It is reported to be invasive in a number of eastern states. C. terniflora is a climbing, semi-evergreen, woody vine (Swearingen and Bargeron, 2016). August 2016. Seeds have long feathery plumes and are widely dispersed by the wind (Skibo, 2006; Global Invasive Species Database, 2010). It can self-seed, and has escaped cultivation and naturalized in many parts of the USA. Global Invasive Species Database (GISD). Sweet autumn clematis (Clematis paniculata, Clematis terniflora) is one of the late-blooming clematis vines that features not only flowers different from most clematis, but also an unusually heady scent. It is sold in Chinese and Korean markets (Han et al., 2013). Flowers emerge late summer to fall, followed by silvery seed heads. The distribution in this summary table is based on all the information available. Compendium record. C. terniflora is self-pollinating and a high proportion of its seed is viable (Skibo, 2006). The introduction of Japanese plants into North America. It has escaped cultivation and is naturalized in many parts of the USA, particularly in the East and Midwest (Missouri Botanical Garden, 2018). Then, repeat every few weeks throughout the growing season. Stem cuttings can also be easily rooted. It is rather rare that a gardener would need to propagate sweet autumn clematis. Germplasm Resources Information Network (GRIN). Sweet autumn clematis leaves and sap are toxic to both humans and animals. Germplasm Resources Information Network (GRIN). Alabama Invasive Plant Council, 2007. Invasive Plant List.,, Bowen B, Johnson K, Franklin S, Call G, Webber M, 2002. Forestry Leaflet 28, July 2011. Clematis terniflora (sweet autumn clematis); invasive habit, showing the white flowers. Climbers. Journal of the Japanese Society for Horticultural Science, 60(3), 643-650. doi: 10.2503/jjshs.60.643, Swearingen J, Bargeron C, 2016. An in vivo and in vitro assessment of the anti-inflammatory, antinociceptive, and immunomodulatory activities of Clematis terniflora DC. Insect pests include aphids, slugs, snails, scale, earwigs, and spider mites. Further details may be available for individual references in the Distribution Table Details section which can be selected by going to Generate Report. Kasugai, Aichi prefecture, Japan. But if you want to share plants, the seedlings that sprout up around a mature plant can be transplanted wherever you wish. Grows rapidly in warm temperatures with twining stems that quickly cover fences, arbors, and sheds.