Cone Flowers taking over the world
We have an extensive border of cone flowers. We had them thinned out a few years ago and they came back thicker than ever. I would like to remove them as I can't keep up with weeding this large border. What is the best way to remove cone flowers? My husband and I are in are 60's and don't think we can dig them up. Thanks in advance for any suggestions.
There are no easy answers. If you do not want to dig them up, you can spray with a nonselective herbicide such as glyphosate. This will kill everything so you will have to protect any desirable plants.
Also, you can remove seedlings in the spring to control spread and remove the seedheads before they mature in late summer early fall.