You can do it like I did. Find a college or university that offers a Turf Grass or Plant science degreed program. Sign up for as Many classes as you can handle and still keep earning a living. After a few years of taking classes you should have a starting back ground and be ready to really learn the Trade with Hands on experience. Of Course if you only have Bluegrass or Fescue turf to deal with, you don't need an education. Any fool can make those turfs green. .