. . . as in bridging the gap between say Scott's product and a full blown organic product? http://agr.wa.gov/pestfert/Fertilizers/FertDB/suppinfo.asp?pname=122 These products are manufactured locally and I have been using these 2 below on my own lawns for many years. GREENACRES PLANT FOOD CENTER 18-10-10 LAWN & GARDEN FERTILIZER GREENACRES PLANT FOOD CENTER 16-16-16 FERTILIZER I fully admit I'm a complete noobie in the fert department - no lic is required to apply fert in Idaho or Washington. I would be applying it on clients lawns during the season and after aeration jobs. Thanks for any input.