Nutsedge/nutgrass

Question

How to kill this stuff off in my flower beds without poisoning the soil?

Answer 1

If it is in your flowerbed and you're worried about killing your other plants, there really is no alternative to carefully digging up each nutsedge plant you see and continuing to do this throughout the season until it is all gone. If you don't mind carefully applying a chemical, Bentazon, Halosulfuron, Imazaquin, or Sulfentrazone should kill it if applied correctly and according to the directions on the package. Virginia Tech gives some guidelines here: http://ext.vt.edu/lawn-garden/turfandgardentips/tips/nutsedge.html