The war on the creeping bellflower continues.
Early on, before I identified the stuff, I hired a gardener to help me figure out how to manage the plants that were taking over. Although bishop’s weed is common in gardens around here, and bellflower is, sadly, more common than it ought to be, she didn’t recognize either one. I wish I had recognized this as a bad sign. However, she did have a good eye for design, and a good team for digging, so she was some help. Nonetheless, she had a naive and touching faith in the power of grass and mulch to choke out weeds, and in short order I was digging bishop’s weed and bellflower out of the newly installed sod.
Later I joined a local gardening group, hoping that there might be some member with good advice. Hah. “Why are you digging?” they said. “Just use RoundUp,” they said. “It’s resistant to herbicides,” I said, and they scoffed.
Well, I am here to tell you that their faith in RoundUp is similarly naive and touching. Last week, I carefully painted it onto the leaves of the bellflower; days later, the weed continued to flourish madly. I said, “OK, no more Ms Nice Gardener,” and spritzed with abandon. The bellflower remains green, healthy, and undaunted, though the herbicide did take care of a few dandelions and similar ordinary weeds in the vicinity. I am really not bothered by dandelions and other such innocent flora. At this point, I am thrilled to see Creeping Charlie spreading in the one bed where I am pretty sure I have eradicated both bellflower and bishop’s weed, because that means that all more serious threats are gone. In all my digging, I killed the iris, but I seem to have succeeded in dissecting the bellflower roots away from the roots of roses and hostas, and I think I salvaged most of the bulbs.
But really, if you have bellflower, you would be better off hiring earth-moving equipment to remove all the topsoil, and then start over. I do not know what I am going to do where it has grown around the roots of the oak tree.