Before we get into the details, you should understand that killing or eliminating the wisteria entirely is only the last resort. The most common of the wisteria species grown in home landscapes are Chinese and Japanese wisteria. Additionally, GrowGardener.com participates in various other affiliate programs, and we sometimes get a commission through purchases made through our links. Thursday 7th of May 2020. Dip a sponge into the herbicide solution and rub it directly on the cut surface of the wisteria stump to kill the root system of the plant. The only way I know to kill one is to cut through the trunk near the ground and paint the cut end with Brush-Killer according to label directions. Our neighbours have just had to completely clear the wisteria as it was completely smothering their magnolia tree and making the tree v leggy, but not killing it as far as I can see. When left unchecked, they can completely twine around shrubs and trees, blocking their sunlight and eventually killing them. I asked a lot of gardening experts and the first time someone told me to kill my wisteria, I was shocked! The wisteria tree can eventually snap the dead oak with its strength. Could the wisteria's root system be killing the root system of the maple tree? The soil must drain well, as wisteria does not enjoy having âwet feet.â You can choose a planting site in your yard that gets full sun throughout the day, as wisteria enjoys the direct sunlight for optimal growth. Wisteria is a climbing vine that produces clusters of hanging, fragrant, blue or purple flowers. All you have to do is follow all the steps, and you can achieve your goal. The seed pods and seeds are considered the most toxic parts of the plant, but all parts contain the harmful chemicals lectin and wisterin, which can cause a burning sensation in the mouth, stomach pain, vomiting, and diarrhea if swallowed. It deters the woodpeckers from coming to the tree, and it makes it hard for them to land on it. Generally, wisteria can grow in all types of soils. Notify me of follow-up comments by email. We even have our Christmas lights strung through the branches. Wisteria is a lovely vine plant producing beautiful, fragrant blooms in early spring. After planting it in my garden, I was really proud of the way it spread! All depends though I guess on how much you are going to prune the wisteria and control it. I don't own the property on the other side of the fence. Fortunately, there is a nice, friendly, native wisteria you can plant -- American wisteria (Wisteria frutescens). The trellis, arch, or pergola can break under the weight if it is not able to take the weight. 5 years ago. Because of its quality of spreading too fast and becoming invasive in no time, it is a good idea to give some thought to where you want to plant it or where you must not! Contact emergency services or take them to a hospital. Sierra Madre, California, holds an annual \"Wistaria Festival\" every March, durinâ¦ It does not have gall. You can use the pocketknife to peel off the bark. Don’t allow the beautiful and sweet-smelling flowers fool you! Make sure that you remove the roots and all signs of the plant fully. Here is their webpage: https://extension.psu.edu/somerset-county Good luck! Dont let those beautiful, sweet-smelling blooms fool you. 0 0. It was more like a trial and error method. If you have any comments or suggestions, we would love to see them. I noticed there are several limbs that are broken off way up in the tree. Always try to minimize the use of chemicals. The varieties of vines that grow up the trunk without circling do not cause strangling or girdling. Follow the directions thoroughly and properly. How to Kill American Wisteria. How do you think about â¦ Its beauty and fragrance are deceptive. Use enough herbicide to cover the exposed area completely. Hello! We feel that you should avoid planting wisteria near your house, garage, or any other structure. Cut it a few inches from the ground. Now, it is time for you to cut the stump and finish off the wisteria completely. Now, you must also take precautions about the place where you plan to plant it. My husband wants to cut the wisteria cause he says it's killing the tree. Then I saw that I needed to do this to save the other plants and even a beautiful tree which was now completely covered in wisteria. It also depends on how big your wisteria is and how strong the herbicide is? My maple tree is dying and we have no idea why. The vines of this plant can find their way into any crack or crevice in the wall. To truly get rid of wisteria, youâre also going to need to use herbicide where it was growing to be sure that it wonât come back. It is a beautiful plant with decorative qualities. However, the problem is that given half a chance, it can grow into a problem! I keep the wisteria vines out of the maple tree. It may affect nearby plants. The spectacular beauty and astonishing vigor of Wisteria are best employed by growing it in the form of a small tree, properly known as a standard. You won’t have to worry about proportions and to mix. Controlling a wisteria problem is difficult, because it is hardy and not easily killed. Swallowing it gives him a severe stomach ache with possible nausea, vomiting or diarrhea. Hi, I â¦ If you notice any new sprouts after a few days, get rid of them immediately. Brenda. This will ensure that the herbicide penetrates the wisteria completely. 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