![]() In zones 7 through 9, add this wisteria near a trellis, patio or pergola post, or any upright structure that needs some bling. Heavy blooming starts in late spring with 4- to 6-inch flower clusters all over the plant.Īmethyst Falls lacks the aggressive nature of Oriental varieties of wisteria, and this hybrid is both deer resistant and drought tolerant. Instead, this fast-growing evergreen vine reaches about 5 to 6 feet high and 4 to 5 feet wide on average. This hybrid of native wisteria has the abundant, fragrant lilac-colored blooms of wisterias, but some bonus features, including less propensity to spread aggressively. ![]() Old World charm meets New World maintenance in Wisteria 'Amethyst Falls’ (Wisteria frutescens ‘Amethyst Falls’). Full Sun (At Least 6 Hours of Direct Sunlight).So again, give lots of thought to not just yourself, but to the others around you and their acceptance of a Wisteria (or any plant with invasive roots) in the landscape. I didn't think we'd ever kill that thing completely. Some grew underneath my concrete patio and sprouted in my border clear across the entire yard. Those roots grew distances that I hadn't thought possible. ![]() I'd heard about this happening before roots finding a small split in the foundation and growing through it and up into a house, but didn't think it would happen to me. What wasn't managed were the underground roots that sprouted new growth into my neighbors yard, up his rain spout and, in a really embarrassing turn, into his house. Keeping the top half pruned to a non life and tree threatening height was work but managed. If you have next door neighbors do they like Wisteria? I had a Chinese Wisteria standard for 15 years or so. Just a thought on any Wisteria regardless of heritage. And it does have much smaller, less showy flower racemes as well. 'Amethyst Falls' IS fragrant - not to the same extent as the Asian species - but many consider the aroma rather musky and unpleasant. Plan on somewhere in the 3-5 year range before it looks like a real wisteria "tree" :-) And don't remove that support stake until the trunk enlarges to about a 3" diameter, if at all! Pruning and training will be an ongoing project, but it can be very rewarding to know that you did that all by yourself :-) 'Amethyst Falls' is a good candidate for this process as it is a much smaller and more compact form of wisteria than most others. For a DYI project, get a young vine and stake the primary leading vine to a height of 3-6 feet, removing all basal shoots below this point and cutting back laterals at the top to 2-3 feet. Training a wisteria in this manner is an extended project taking several years, which is why standard wisterias generally command hefty price tags. Here, even tree-form or standard wisterias are sold as 'vines'. However, this vine will be marginal in your zone, tolerating temps only above around -3F to -5F, so winter dieback could be commonplace, resulting in a much smaller vine if it survives. And too, this vine can extend as much as 30' so a large support is typically called for. The strength of the vining 'trunk' can easily bend metal pipes, so I'd avoid metal arbors unless they are very sturdy and strong. 4x4 uprights are typically the minimum size recommended and make sure they have very solid footings. It needs a substantial support system - simple wood trellises or arbors are generally not going to be strong enough. And American wisteria is a big, vigorous vine much like the Asian just grows slower and doesn't have similar invasive tendencies. Actually, it can be as much as 20 years before a seed grown wisteria blooms, although Wisteria frutescens and 'Amethyst Falls' in particular are likely to bloom at a much younger stage of development compared to the Asian species.
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