My backyard is beginning to wash off into a canal. It's wooded but could be planted easily. I need a good strong grass to slow the slough. I've seen that stuff on TV that has the seeds and fertilizer in a spray jug and you apply it with a water hose. It's almost like slime. I'm just wanting a good coat of grass before I do step two of the erosion control. The surface area would be about 30x30.