“Platinum Plan.” The Platinum Plan is a 6 treatment program. The program includes 2 pre emergent applications in the spring to prevent weeds throughout the season. The next 3 applications will be a mostly nitrogen fertilizer to promote that deep green color we all love in our lawn. Finally, the last application is the late fall treatment. This treatment is designed to get the lawn off to a great start the next season. The six applications in this program will be on six week intervals.