Ms. Sappington has helped produce more than 25 urban forest management plans for organizations including municipalities, universities, and nonprofit foundations throughout California. She regularly performs tree risk assessments and helps clients develop specifications for a variety of circumstances involving tree care. She has more than 25 years of tree consulting experience, and she has written extensively about the landscape industry. She has experience managing projects in both the public and private sectors. As such, she has experience presenting and giving testimony in public forums. In addition to many residential and public works projects, she designed seven miles of award-winning medians for the city of Palm Desert.

She serves on the executive board of the Inland Urban Forest Council and is a member of the California Urban Forestry Advisory Committee. For more than 15 years, Ms. Sappington has been a University of California Master Gardener. She is the 2014 recipient of the Volunteer of the Year award from the California Urban Forests Council.