Indeed, wisteria is highly aggressive! Sizable trees have been killed by vining wisteria. And wisteria produces new shoots if cut back or trimmed so you’re actually helping the vine grow more shoots.
Because wisteria will continue to sprout after it has been cut, it should be cut back early in the season, cutting sprouts every few weeks until the fall. This will stop growth of existing vines and prevent seed production. When you do have to cut, just cut climbing or trailing vines as close to the root as possible. Immediately apply a 25% solution of glyphosate or triclopyr to the stem. The best time to apply an herbicide is in the spring and summer when wisteria is actively growing.
Indeed, wisteria is highly aggressive! Sizable trees have been killed by vining wisteria. And wisteria produces new shoots if cut back or trimmed so you’re actually helping the vine grow more shoots.
Because wisteria will continue to sprout after it has been cut, it should be cut back early in the season, cutting sprouts every few weeks until the fall. This will stop growth of existing vines and prevent seed production. When you do have to cut, just cut climbing or trailing vines as close to the root as possible. Immediately apply a 25% solution of glyphosate or triclopyr to the stem. The best time to apply an herbicide is in the spring and summer when wisteria is actively growing.