In my zone 5 climate, there is not enough warm weather in fall to mature seeds and I have never found a single seedling from my two plants. The one issue with sweet autumn clematis is that it is invasive in warmer climates and has naturalized in much of the Southeastern US. I find this clematis grows best climbing up another shrub - the growth is too vigorous for most trellises. It has so much growth that it's bending the lilac branches over. I have a white autumn blooming clematis, and it looks very much like a sweet autumn clematis, but it has no smell whatsoever. In spring, I dramatically reduced the size of the lilac behind it and I suspect the increase in light has given the clematis extra growing and flowering power. It generally flowers quite well but not as well as this year. The plant in the picture has been in place for about 10 years. The small size of flowers is more than compensated for by their shear number. 'Sweet Autumn' is hardy down to zone 4, smells heavenly, and is magical around arbors or along fences. Each can be identified using the above descriptions. The leaves on the other hand are quite different, with very definite serrations.Ĭomparison of Clematis virginian and Clematis terniflora, by Garden FundamentalsĪll of these plants make relatively small flowers when compared to most hybridized clematis and flower in the fall. You will frequently find a plant with this name for sale, but in North America it is rarely the true plant.Ĭlematis virginiana, also called virgin’s bower, is native to North America, has white dioecious flowers with four sepals and look much like C. The stamens are much shorter than the sepals. It also has smooth edged leaves and white flowers, but they have 6 sepals. It is the true sweet autumn clematis and has a number of synonyms including Clematis paniculata.Ĭlematis paniculata is actually a completely different species from New Zealand. The edge of the leaves are mostly smooth. The stamens are quite long almost as long as the sepals, giving it a fuzzy appearance. terniflora is an Asian species that has white flowers with four sepals. This confusion is caused by three similar clematis all of which bloom in fall with white flowers.Ĭ. Names and pictures on the internet are frequently mixed up and can be just plain wrong. As a native, it is not technically considered an invasive species, however it does have an ability to. ![]() Clematis virginiana, aka virgin's bower, is a native species with heavily toothed leaves. terniflora also goes by the common name sweet autumn virginsbowler. gardengal48 (PNW Z8/9) Clematis terniflora (SAC) is a non-native species with rounded leaves that is considered invasive in some areas of the country. ![]() It is easy to grow and flowers every year.Ĭ. It is flowering right now in a large swath that covers a mature lilac and some neighboring plants as well. Clematis terniflora, the sweet autumn clematis, is a great plant for the fall garden.
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