Arborscape - Denver and Colorado Tree Service and Lawn Care Arborscape - Denver and Colorado Tree Service and Lawn Care

David Merriman Arborist


David Merriman is a leading Colorado arborist and operates ArborScape. Merriman began work at the age of 10 with his father in Colorado, and now has more than 30 years of hands-on experience. He has studied horticulture at the University of Wyoming, Tarrant County Junior College, and Front Range Community College. Merriman specializes in common Colorado tree species such as ash and pine trees and his main area of research is the sub-field of urban arboriculture.



David Merriman is an ISA Certified arborist (#RM0786A), a Registered Consulting Arborist of the American Society of Consulting Arborists (#538) and holds a QS through the Colorado Department of Agriculture (Applicator ID #07448).

David Merriman is a Registered Consulting Arborist (#2122) with American Society of Consulting Arborists and is a past board member of the Rocky Mountain ISA.

Merriman takes a common-sense approach to helping ArborScape’s clients. Understanding how a tree fits in your long-term plans guides his approach to creating a trimming or PHC plan. Merriman also manages some of ArborScape’s largest commercial tree service clients including,

  • NREL
  • Army Corps of Engineers
  • City of Aurora

David is passionate about helping other arborists and is generous in sharing the lessons he’s learned in running and marketing a tree service.

In addition to ArborScape’s in-house apprentice program, David Merriman devotes his time to working with at risk youth. He hopes that by sharing a trade, that has brought him so much, young people will have a better chance of contributing to their communities.

In 2008 Merriman helped start a new program with the Jefferson County Work Force Center, to train arborists. It consists of 13 weeks of classroom instruction combined with on-the-job training. Then the students are placed with a private or public sector employer where they spend 3 hours in the classroom, and 16-24 hours in the field.

During his free time he enjoys ATV-ing, spending time with family and reading.


ASCA Consulting arborist


Articles that David Merriman has written or contributed to:

3 Tree Fertilization Techniques

Are your trees ready for Winter?

Other ArborScape Arborists: