Start educating yourself and take classes and get certifications when they are available. My business is ponds and hardscapes/landscaping, but I keep enough mowing accounts for one day a week. This keeps me in the neighborhoods and I get paid for advertising (mowing). I'll always keep a mowing route or crew. Hardscaping can get touchy here and there if your not a bigger company.
St.louis Ponds and Waterfalls
"We bring life to your backyard"