Perennials. Coneflower, shasta daisy, four-nerve daisy, lantana, salvia and yarrow can be planted this month. Look for 1-gallon pots for faster growth and spread. Ornamental grasses. Maiden grass, bamboo muhly, big muhly, pink muhly, inland sea oats, Mexican feather grass, switchgrass and purple fountain grass are great grasses to try. Choose grasses in 1- to 5-gallon containers.Note: Some grasses, like Mexican feather grass, can be invasive. Be sure your plant choices are appropriate and recommended for your area.