Sign up for our newsletter to receive educational information
-Click Here-

"Quality Service at a Fair Price"

- Chris Nash, Founder

FREE ESTIMATES: fill out our form
-or- call our Certified Arborists and Master
Gardeners to receive a consultation today.

PH: 503-538-8733


Why choose us?

Our Team


Chris Nash

President, CEO
Certified Arborist: PN-5588A
Forensic Arborist
Consulting Arborist
Master Gardener

Chris is an Accredited, Certified, Forensic and Consulting Arborist, and a Master Gardner with over 30 years of experience in tree care, landscape and forestland management. Chris founded Northwest Arbor-Culture Inc with a mission to provide our customers quality service at a fair price. Through determination and innovation, Northwest Arbor-Culture Inc endeavored to bring Chris’ exacting standards to all facets of the green industry. With growing knowledge, education and expertise, Northwest Arbor-Culture Inc’s staff continuously exceeds industry standards of excellence, applying Chris’ philosophy of preservation, safety and aesthetic enhancement and emphasis on detail and courtesy. Chris guarantees every customer’s satisfaction.


Jonathan Nash

Vice President, CMO
Certified Arborist: WE-8277A
Forensic Arborist
Consulting Arborist
Master Gardener

Jonathan is an Accredited Certified Arborist with over 15 Years of experience in the tree care industry. Jonathan began his career in 1998 working on the ground for his Father at Northwest Arbor-Culture Inc. Jonathan quickly developed a passion for arboriculture and honed his skills as an expert climber. He continued his education at University of California San Diego, where he was later hired as the Consulting Arborist. Jonathan continued developing his education and skills as the Consulting Arborist at The San Diego Zoo/Botanical Garden. In 2010, Jonathan returned to the Northwest Arbor-Culture Inc with the necessary education and experience to assist in meeting our clients needs and expectations. Today, Jonathan is applying his education to consulting and forensics.


Jillian Spalding

Commercial Accounts Manager
Consulting Arborist

Jillian is the voice of Northwest Arbor-Culture Inc. Jillian came to Northwest Arbor-Culture Inc in 2002 as an efficient and skilled office manager. Finding that the office was not enough challenge, Jillian has applied her extra time to developing her education as an ISA Certified Arborist. Her organizational skills and customer service quickly proved to be missing part of our team. Jillian has taken our Commercial Division by the reins, maintains quality control and customer satisfaction.


Jesse Pedigo

Tree Division Operations Manager
Tree Crew Foreman
Consulting Arborist

Jesse began his career with Northwest Arbor-Culture Inc in 2002, when his father was the Tree-Care Division Manager. Since joining our team, Jesse’s growing knowledge and education of the industry, along with his leadership skills and work ethics has contributed to the professional, high standards that Northwest Arbor-Culture Inc demands. Jesse’s extensive skills in hazardous tree removal and tree trimming/pruning has allowed for Jesse to be a vital part of the backbone of Northwest Arbor-Culture Inc. Learning the tree-care industry from the ground up has made Jesse a great manager and wonderful asset to our team.


Joseph Pedigo

Assistant Tree Division Operations Manager
Tree Crew Foreman

Joseph began his career with Northwest Arbor-Culture Inc in 2002, when his father was the Tree-Care Division Manager. As Northwest Arbor-Culture Inc’s most articulate tree-care provider, Joseph quickly developed into a highly skilled Arborist. His work ethic, tree care knowledge and dedication to Northwest Arbor-Culture Inc’s high quality standards has made Joseph a vital part of our team. Joseph’s artistic skills and attention to detail has become highly regarded in the industry and greatly contributes to the unmatched quality of Northwest Arbor-Culture Inc.


Patrick Murwin


Patrick began his career with Northwest Arbor-Culture Inc in 2001 as our highly skilled Mechanic, managing the daily operation and maintenance of our sophisticated equipment. Integrating his skills from the shops to the field allowed Patrick an opportunity to assist the crews as a Groundsman, and a developing climber. Patrick’s positive attitude, tireless work ethic and dependability, has made him an irreplaceable asset to our team.

We provide Tree, Landscape and Consulting services throughout Oregon and Washington

Hover over your state to find your city

Our Affiliates