![]() ![]() Is Wisteria an Invasive Plant?Ĭhinese wisteria (Wisteria sinensis) and Japanese wisteria (Wisteria floribunda) are not native to North America and are considered invasive species in some states. These toxins can cause anything from nausea and diarrhea to death if consumed in large amounts. Note: Plant wisteria with caution! All parts of the wisteria plant contain substances called lectin and wisterin, which are toxic to pets, livestock, and humans. After flowering, a brown, bean-like pod stays on the plant until winter. Wisteria flowers are beautifully fragrant, providing a feast for the senses. Wisteria vines will work their way into any crook or cranny they can reach, so it's advised to not plant them too near to your home. However, this vine is a fast and aggressive grower-often reaching 30+ feet long-and is known to grow quite heavy. Wisteria is a long-lived vining plant with cascades of blue to purple flowers that look spectacular hanging from a pergola or archway in spring and early summer. When this gorgeous vine finishes flowering (often in June), it's time to prune! See more about caring for wisteria, from planting to pruning in our Wisteria Growing Guide. ![]() Wisteria blooms vigorously in spring, producing clusters of lilac-color flowers on new growth, which in turn emerges from spurs off the main shoots. ![]()
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