I had trumpet vine and it was not invasive but I also had silver lace vine and that one went up behind the siding of the house and could have been costly.

If you're doing a cover crop then part of the sequence is to actually cut the crop before it comes to flower so you get plenty of juicy material that rots down quickly - and has enough fibre to not make a felted mess (like you see with heaps of grass clippings.) The roots stay in the soil and, as they rot down, add even more humus to the soil. It is really important to not bury the cover crop deeply, It can combine with clay to make a bit of a toxic brew for a while. If you live in a rural area observe how the farmers disc in the crop residue (hoping that they don't burn off.) You might also notice that some farmers turn stock onto the crop residue to clean up and add manure before they disc. You'll need to have an acceptable process to add extra nitrogen to the soil as the cover crop rots down. Something slow acting, such as blood and bone could be useful, although it can attract animals. Perhaps dried animal manure would be an alternative. Your biggest hassle would come if you have a perennial weed (like dandelions, dock, twitch grass, or whatever your local nightmare/s happen to be) growing in your cover crop. The darned things LOVE being disced. It spreads little bits of root everywhere - and, being weeds, they usually all grow. A cover crop can be highly useful in a poor soil - and to give protection if wind or heavy rain moves soil in your area. You might also want to consider growing a cleaning crop such as potatoes, or rows of peas that need regular weed control and/or hilling up. If you were to lay down a mulch between the rows, along the lines that lindac has suggested, then you could have 'the best of both worlds'. If you do decide on doing the cover crop - and leaving it over winter (a ryegrass, mustard, lupin, barley, clover, vetch crop would probably all be suitable) remember to leave enough time between the cutting back, digging in - and your planned planting date - for the material to rot down, or plant crops that will tolerate quantities of partially rotted material in the soil. Also think about any fertiliser/liming that needs to be done, too. Those additions need time to become effective in the soil for following crops - and some crops don't like them too fresh.

Thanks, agardenstateof_mind. I hadn't thought about returning it as being a statement of being unhappy about them selling an invasive. That's a good point. Yes, there are other stores around that I could visit. Unfortunately, I did all my shopping there today.......but I could always shop some more. :) You just wouldn't believe our property. We moved here about 32 years ago, and the man who owned it first, bought Janpanese bush honeysuckle from the DNR.........also Russian olive. In our ignorance, we thought they were great plants. The birds loved the berries on the honeysuckle. Then we got busy raising kids, and before we realized it, it covered about all of our acreage. We don't use chemicals, and my husband has tried to pull it out, but its futile. I think every single berry turns into a new bush. I thought the drought last summer would help, but it came back with a vengeance. And we have wild grape, garlic mustard, wild yam, wild raspberries, wild rose, poison ivy, euonymous, crown vetch everywhere, and now in the past week, I've discovered 2 new vines. If I ever find kudzu, I think I'll go crazy. (I mean crazier). I think I will return those plants.......even though burning them would have been such fun.......haha I'm trying to accept globalization of plants and animals, since its not going away. But it makes me really, really sad. (The one good thing recently is that I found a huge Jack-in-the-Pulpit!!) Good luck staying ahead of your chameleon plant. Thanks again.

I did a search on google, and on another forum a poster reports that it wascoming up from runners all over her yard as well. Round-up, very carefully applied may help.