If you walk into a garden centre and pick up a pot of wisteria, chances are it'll be a Wisteria frutescens, better known by its brand name 'Amethyst Falls.' Leaf spot, Powdery mildew Leaf spot , Powdery mildew . This is the hard, woody part. Wisterias can be left to ramble unchecked where space allows but will usually flower more freely and regularly if pruned twice a year. Although it seems complicated, wisteria pruning is quite simple if you follow our simple guide. The end result should be a skeleton frame work of reasonably well-spaced branches. Wisteriadoesn't fair well in the cold, so make sure it receives plenty of sunlight. Space the process out over the span of a few years. Over time, and with pruning twice a year, plants will build up a strong spur system. Am going to wait until Spring to prune … Drastically shortening back long branches, removing sections of older stems to just above a strong young branch or growth shoot lower down, or cutting completely back to a main branch, or even to ground level may be necessary. With older plants severe pruning may be needed to remove old, worn-out growths, or branches growing over windows or protruding outwards from the face of the building. After planting, prune the leading shoot of your wisteria back to approximately 90cm above ground level and remove any side branches as this will encourage a strong new leader to form. We know ads can be annoying, but they’re what allow us to make all of wikiHow available for free. Wisteria is a popular climbing vine that produces beautiful purple flowers. Genus Wisteria are vigorous woody climbers with twining stems bearing pinnate leaves and long pendulous racemes of fragrant pea-like flowers in spring and early summer . Since wisteria flowers develop on the previous year’s growth, pruning wisterias biannually not only keeps these vigorous vines to a manageable size but also creates a system of short branches close to the structure, where you can more easily enjoy the blooms. Likewise, hard pruning maybe required where maintenance needs to be carried out on the structure supporting the plant. American wisteria (Wisteria frutescens), which grows in Zones 5 to 9. Don’t waste your time giving it a wall facing north or east. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/d\/d0\/Prune-Wisteria-Step-1.jpg\/v4-460px-Prune-Wisteria-Step-1.jpg","bigUrl":"\/images\/thumb\/d\/d0\/Prune-Wisteria-Step-1.jpg\/aid9431734-v4-728px-Prune-Wisteria-Step-1.jpg","smallWidth":460,"smallHeight":345,"bigWidth":"728","bigHeight":"546","licensing":"