If your lawn is reasonably healthy and only needs a boost in overall vitality and color, we recommend NOURISH-BIOSOL at 8 to 12lbs per 1,000 sq ft. If your lawn suffers from pests, disease, or drainage problems, we recommend BLEND at approximately 25lbs per 1,000 sq ft. Right over the top of BLEND, apply PENETRATE Liquid BioTiller at about 8oz per 1,000sq ft. These treatments should be repeated, at least, every 6 months. Apply more frequently if turf color becomes an issue.