Originally posted by WPRESTO Crown vetch with a slightly bokehed background. This is a plant that I hate - - HATE, HATE, HATE - - It has invaded a nice patch of tiger lilies we have, it's slowly crowding or choking them out, and it utterly impossible to eradicate. And by the way I HATE THIS PLANT, but the flowers are kind of pretty. Perhaps the only plant I hate more is Oriental bittersweet. I want all of it deported.
There was crownvetch on the dam for our pond, when we bought the place in the early 1980s, and now the danged stuff is all over. It isn't good animal forage, so I have been trying to get rid of it in my pasture. I hate using herbicides, but Bonide Poison Ivy Killer, seems to do a good job of knocking it down, and doesn't kill grassses. Generally I just spot spray with a pump sprayer. (I wait about a month before letting animals graze where I've used that spray). Perhaps you could wrap or shield or at least do your best to avoid the lily plants, since it will kill or damage any broad-leaved plant. A word of warning, though, sometimes the crownvetch will resprout the next year in some of the same places, either because some bits of root didn't kill or because it has left a lot of its infernal seeds on and in the ground anywhere it has been growing for very long!
We have a terrible invasive bush here, too, the Autumn Olive. It was actually promoted by the state DNR years a go as a good wildlife habitat plant. Birds certainly love the berries, which is how it gets planted all over beyond where it was intentionally planted. It has an upside that the crownvetch doesn't have: our three goats just love to strip and eat the bark from as many Autumn Olive branches as we want to cut and carry to them. The branches have thorny spurs, but the goats just eat them, too.