As your wildflowers become established, many types of aggressive grasses that were not successfully eliminated during the initial site preparation may appear.  Johnson grass, Crabgrass, and Ryegrasses are examples of unwanted grass varieties that can hide your wildflowers from view and compete with the area's overall beauty. We recommend Ornamec 170 herbicide to eliminate unsightly, protruding grasses without injury to your wildflowers, including emerging wildflower seedlings and transplants.  Labeled for over-the-top application, Ornamec 170's active ingredient begins to work within five days to remove unsightly grasses. NOTE OBSERVE ALL PRECAUTIONS AND FOLLOW THE DIRECTIONS CAREFULLY.    Mixture Ratio 8 - 10 ounces per gallon of water.