Hi all, I'm planning to start a lawn care business in the spring, as I've said in many other posts. After lurking on the forum for a while, I've learned a whole lot about the business. However, I feel like I'm lacking in the horticulture department. I'm a professional engineer, so it's not in my background. It seems like I need a knowledge base in order to understand most of the discussion in this forum, in regards to the technical aspects of building and maintaining a healthy lawn. Seems to me a good start would be a book. Can anyone recommend a book that would fill me in on how to build and maintain a healthy lawn ? I need to know about soil, chemicals, fertilizer, aerating, watering, weeds, etc.