Thanks for the photo as it does help to see. I do have quite a few other plants so I def will have to keep it trimmed, with either pennywort or water sprite.Pennywort can easily go just as crazy as wisteria, especially when floated. I love floating pennywort though, it's gets such beautiful leaves and it is super easy. Be warned any floaters can starve out plants below pretty quickly so keep them thinned out if you have other plants.
Pennywort on the left side, wisteria on the right.
