If your thin and weak lawn is in need of disaster relief, rescue it with Scotts Lawn Response 9-1-1. This is the lawn mixture that can transform a poor lawn quickly, so you'll see thicker, greener grass in as little as one week. Formulated as a 3-in-1, this blend contains a unique mix of organic and slow-release fertilizers, soil enhancers, and high-performance grass seed. Apply just once a year in Spring or early Fall for deep green colour, and thick, durable turf that crowds out weeds.