Q.Baptisia
I’d love to get rid of my baptisia plants. They’ve spread SO much! If I could give them a dedicated place that would be ok, but what to do???
Certified GKH Gardening Expert
If you do just make sure that you keep it far away from anywhere you don't want it spreading. As far as killing it- Try cutting it all down and pouring several rounds of boiling water on the area. Do this for a few days, and they should die out. Sugar is effective as well. If those don't work for you, then you might need to turn towards chemical control.
Either way that you choose just make sure that you dig out as many roots as you can between the treatments.
https://www.gardeningknowhow.com/special/organic/homemade-pet-friendly-weed-killer.htm
https://www.gardeningknowhow.com/plant-problems/weeds/boiling-water-and-plants.htm
