If you don’t have a lot of newspaper lying around, try getting some at your local recycling plant. [2] X Research source
Read the instructions that come with the post-emergent herbicide to know exactly how much to apply to the flower bed. [12] X Research source
Be extremely cautious when handling the water, as it can burn you if you spill it on yourself. Do not pour any hot water onto your flowers, or you may accidentally kill them as well. Refill the pot with water and boil it if you don’t cover all of the grass with the first pot of water.