We have a lawn fertilizing company that treats out lawn every month in the spring summer and fall. After seven years of chemicals being dumped on our lawn I finally decided to take a look at what was being put all over our lawn. And as a added incentive we now have a little one trotting around out there. I always new that that stuff couldn't be good for you or the pets. We always had to keep them in until the grass was dry. I didn't want to worry anymore and saw something Trugreen had advertised about going green. http://www.spring-green.com/glossary-organic-fertilizer.aspx I called and ever since then we have been poison free! I cant even believe how that was always on my mind but I never thought there was a healthy alternative and one that would work.