| Founder & Master Arborist — Tree Care Labs |
Michael J Hartman
| ISA Board Certified Master Arborist® · TRAQ Qualified · 40+ Years |
Michael J. Hartman has spent more than four decades in the field, tree by tree, root by root, building one of the most technically rigorous careers in American arboriculture.
From managing 40,000-tree municipal canopies in the Pacific Northwest to diagnosing drought-stressed specimens under Texas heat, his expertise spans every U.S. climate and every scale of tree care.
In 2023, Hartman founded Tree Care Labs to give every property owner in America access to arboricultural standards set by a Board Certified Master Arborist.
—- Today at Tree Care Labs
Modern arboriculture is not about pruning. It is about precision through practice. We are architects of the canopy
As Founder and Chief Arborist at Tree Care Labs, Michael oversees the technical standards that govern every service the brand delivers across North America. His current focus is the integration of precise topographic soil analysis and advanced microbiome remediation into standard residential tree care protocols — practices previously reserved for commercial urban forestry.
| Philosophy & Practice |
Defining the New Standard for Professional Silviculture.
| Hartman’s influence is embedded in the very guidelines that shape practice today. His contributions to ANSI A300 pruning standards helped shift the industry away from production-first mentalities toward evidence-based, tree-centered management — a shift that took root in municipal contracts and commercial preservation work across the country. |
| Over a 40-year career, Hartman has mentored dozens of working arborists, many of whom now direct municipal forestry departments or lead specialized preservation firms. The ripple effect of his standards-driven approach continues to shape how a new generation of certified professionals approaches every site visit. |
ISA Board Certified Master Arborist
The highest level of certification issued by the International Society of Arboriculture. Awarded to fewer than 2% of practitioners worldwide. Requires demonstrated mastery of tree biology, risk assessment, diagnosis, and long-term management.
TRAQ Qualified
Tree Risk Assessment Qualification — the ISA’s standardized framework for systematic, defensible assessment of tree-related structural hazards and failure probability.
ASCA Consulting Member
Active member of the American Society of Consulting Arborists. Qualified to serve as an expert witness in legal and municipal disputes involving tree preservation, liability, and ordinance interpretation.
TCI Safety Professional
Certified Tree Care Safety Professional (CTSP). Contributed to crew safety protocol development for high-risk climbing and large-scale rigging operations.
Soil Food Web Certified
Specialized certification in soil ecology and biological amendment science. Applied to heritage specimen diagnosis and organic soil remediation for long-term root zone health.
40+
Years Experience
15K
Trees Assessed
12
Nations Covered
200+
Articles Published
| ——- Core Methodology |
Preservation-First. Always.
“We do not own the trees — we are merely their contemporary stewards.
Removal is the absolute last resort. Every intervention begins with a single question: can this tree be saved?
If it can — and it almost always can — that is the path we take.”Michael Hartman, Founder & Chief Arborist, Tree Care Labs
Hartman’s methodology is built on three non-negotiable pillars: empirical diagnosis before any recommendation, soil science as the foundation of all tree health decisions, and structural intervention guided by compartmentalization biology. Where other operators reach for a chainsaw, Tree Care Labs reaches for a soil probe.
“I am still wandering the same woods I walked as a child.
There is a profound humility in realizing that the trees we plant today will outlive our names, our careers, and our current worries.
That perspective is what keeps the work grounded — and what keeps me honest about every recommendation I make.”
Michael J Hartman