Brian from Ne Pa writes
Per the Bonide Grass Beater Over-The-Top Grass Killer Concentrate label it is safe to use on Sandwort Moss, Rose Moss and Moss Verbena plants. For any other moss not listed on the label, we would recommend applying the product to a small section first before applying it over the entire area to see how well it works on your plants.
Answer last updated on: 05/19/2019