Lewis from Tuscaloosa, Al writes
Southern Ag Lawn Weed Killer with Trimec can be applied to the following established turfgrasses: St. Augustine (Note: Not for use on improved varieties in the South), Bermuda, Bahia, Blue Grass, Fescues, Rye and Centipede. It does not specifically label daylilies or iris but could potentially cause harm to them. Gordons Ornamec Over-The-Top Grass Herbicide is a great choice for treatment of grassy weeds in established ornamental beds. Many of the plants you have listed are on the "full tolerant" species list on the product label. For those not listed, you may want to test a small number of plants or avoid spraying over the top of those plants.
Answer last updated on: 02/15/2018
