Company Logo - Lawn Care and Irrigation Company

I am looking for a simple logo to identify my business. My company maintains residential lawns and provides residential sprinkler repair work. We are located in Texas and the main grass here is St. Augustine and main trees are oak trees. Not that you have to use those items but stringy grass with pine trees in the logo wouldn't fit with our area. Maybe incorporate outline of the state of TX? This logo will be put on everything - shirts, letterhead, envelopes, hats, etc - so the size has to work for all of them. I would like the same logo to incorporate two company names: 1.) Liberty Lawn Care 2.) Liberty Lawn and Irrigation My general thought is to have a plain of grass with a sprinkler head and maybe a mower or someone mowing. Put the company name under it, on top of it, wherever it looks good. It can be simple or you can work it into the logo - doesn't matter to me. I'm no artist and trust your judgment. If you have designed logos for lawn care companies previously that would be a big plus with me. Any examples you have might be helpful if my request isn't clear enough already.