Dr. Rodney St. John is an Agronomist at Ryan Lawn and Tree, Overland Park, Kansas. He received his Ph.D. in Horticulture from Iowa State University specializing in soil chemistry and fertility. Before joining the Ryan team, he was a professor and State Turfgrass Extension Specialist at Kansas State University.

Rodney has over 20 years of experience in the green industry and he has a deep passion for green, healthy lawns. He loves to help people grow grass. At RYAN, he continues to teach homeowners in the Midwest how to properly care for their lawns.

In addition to educating homeowners, Rodney tests new products, grass seed, and weed management practices so that RYAN can help clients grow the best lawn possible. He trains Ryan turf managers in the latest best practices, and work with them to troubleshoot struggling lawns.

When Rodney is not working he enjoys camping and spending time with his lovely wife Sherry and their 3 children. He also enjoys repairing, maintaining, and enhancing his Jeep and the family house. He is a devoted follower of Jesus Christ, and an active member of Olathe Christian Church.

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