There is no treat-and-forget solution where it has been well-established in a lawn. It requires constant vigilence like being a lawn security guard. I've tried the oxalis-destroyer but fear it has made matters worse. The problem is that the chemical stresses out the lawn grass while it is attempting to control its targeted foe and a stressed lawn makes it that much easier for any weed to take hold. So you may need to just live with a slightly brown lawn until the violets have succumbed. Fall treatment followed by the following Spring is the best success and figure on a few years followed by close monitoring and more treatments when new eruptions occur. Use a surfactant to help break the wax (yes, the violet leaves have been preparing for our attack for thousands of years). And before you violet sympathizers begin to suffer the effrontery of eradicating this natural botanical... try to understand and sympathize with the lawn maintainers. Homeowners who spend years planting and caring for a lawn (in this context, "lawn" means grass!) resent any invader that seeks to undo all their efforts and expense which created the lawn in the first place. It's not the occasional tuft of violets that is at issue but rather an entire lawn covered to the point where the grass has been all but eliminated. If we wanted a field covered with violets we would have planted them in the first place. And trying to bag clippings is near impossible because violet leaves do not shear like grass and discharge through the chute. They create a slurry of green sludge that must be removed from the bag by hand or with a trowel. There is a difference between coexisting and invading. Wild violets are about as invasive a weed as there is and confounds lawn care all over the country. They have ceased to be "cute" additions to a cultured environment.

Hi! I notice most of this thread is 9 years old and i wonder if you folks are still here, reading this discussion makes me happy. I was researching if i could transplant iris, black eyed Susan, bergamot, and coneflowers into my damp sunny front yard violet patch and expect them to thrive, and I'm going to try it! @Hu of 5 months ago, that would be really pretty, columbine with violets. IDK if it would work but I will try it too after the hardy stuff establishes! My goal is to make a privacy screen so I feel less exposed in my front yard. I want it dense with always something blooming. Right now I have a big forsythia on one end, hollies on the other, and a 100yo rose bush in the middle. I want to be able to put a hammock between the apple trees without my neighbors leering at me. Zone 6 NE KY!

These pics of the Navajo blackberries sure look better than the ones I planted a few years ago. I don't know why but they just haven't done well. I was away for a year and when I came back to the garden they were practically goners. After coddling them all summer they are starting to put on new growth, but I had expected much better results from the thornless. Needless to say, I'm still looking around for a better variety for my area. Also, I've found that at least for me, they do need support, as they tend to droop. Barbara

Yeah! I have priceana and the regular purple. I saw your gaggle of seedlings-- exciting! :) I was thinking about her because of my success with the others, although since my space is limited I wasn't sure if it would be worth it since I already have Priceana. I think it may be, though, just for sheer number of blooms.