When running a lawn care and snow removal business you need to grow slow not Fast. Growing to fast will put your business in the ground. I have seen 2 company's in my area do so.
Some tips I have are yard signs are cheap and people see them all the time. At first I did not like to this but it does help. I ask people where did you see my name. And the first year I did the signs 3 people said the yard signs in someones yard. The Cost me $15.00 per sign. I put 4 up in my towns and thats it. It has made me $2,350.00 from just those 3 people I did work with. Now They have made me more customers but that was just the one year doing business with those 3 people.
Getting a website out there is a great thing. Make sure if you make it you play around with it. It takes a lot of time to make. Make sure you find your self on the big names like Google.
A great thing that is helping me right now is networking. Networking a class I take work other business owners and we all get together and pas referrals around and take about our business. My networking class is named BNI.
Make sure you put adds in the paper if you are in a smaller town. This will help. most of the old ones Will look at that paper with your add in it. If they need help they will call you.
All in all I think if you want to be in the lawn care business you need to grow you business up slower...