scott seargeant, expert arborist in california

Scott Seargeant

The Voice for the Trees: Certified Consulting Arborist & Forensic Analyst

47 Years of Scientific Analysis and Expert Care to Protect Your Most Valuable Natural Assets.

A Legacy Rooted in Modern Tree Science

My journey as an arborist began at age 5, but my professional foundation was built at Cal Poly State University, San Luis Obispo, California. I had the distinct honor of being mentored by the legendary Dr. Alex Shigo, the father of modern arboriculture.

This wasn’t just an education; it was learning to understand the biological defense systems of trees (CODIT) and the advanced physiological processes that govern tree life.

Today, as one of the original ISA Certified Arborists, I apply that same high-level science to every consultation and landscape I work on.

scott seargeant with a beautiful landscape
scott seargeant performing tree consulting
ca landscape contractor
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Cal Poly State University, San Luis Obispo, CA
ascalogo2022 registered
healthy tall tree

Beyond Aesthetics:

The Forensic Arborist Mindset

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Trees are living assets that use a complex sign language to communicate stress and decay. Most people see a tree; an expert arborist sees a structural history.

Whether I am investigating a sudden failure for a legal case or assessing the health of centuries-old Giant Sequoias, I use forensic analysis and specialized diagnostic tools to uncover what the eyes miss.

From the palm trees of Mexico to the California Giant Sequoias, my career has been defined by solving the most complex challenges in our urban & natural forests.

Forensic Reports & Field Notes

Residential
Perimeter Screening

Subdivision Tree Preservation & Screening

As the consulting arborist, I revitalized a failing 104-tree screen by correcting drainage and soil issues. Through strategic replanting and technical irrigation, we achieved a 100% survival rate over two years without using chemicals.

Rows of healthy deciduous street trees with vibrant orange and red autumn foliage in downtown Corcoran, California, showing the results of a professional municipal tree assessment and revitalization plan by Sergeant Landscape & Arboriculture.
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Downtown Corcoran
Revitalization

Urban Forest Master Planning

I assisted in Corcoran’s downtown revitalization with a deciduous canopy plan. My recommendation invited summer shade and fall color, helping revitalize the downtown economy and community pride for 20+ years.

Strategic urban tree planning in Corcoran, CA, featuring mature trees selected for seasonal color and winter sunlight penetration to improve downtown business district aesthetics and environmental health
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Historic Hanford Municipal Park

Public Safety & Heritage Management

After decades of brutal pruning led to structural rot, I performed a forensic risk assessment. I guided the city through a successful renewal cycle, replacing high-risk, hazardous trees with healthy, sustainable urban growth.

Historic Hanford Municipal Park
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weatherization program in california

THE VOICE OF THE CLIENT

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★★★★★

Scott Seargeant has been my arborist for the past 10 years. When he first came out to my place I had a couple of trees that were literally dying. He diagnosed their disease with precision and treated them.

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DA
Dick Arieas
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★★★★★

I want to give a big thank you to Scott Seargeant for his great service. He was able to complete my tree removal and share crucial tree knowledge.

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★★★★★

Scott is an excellent arborist. I subcontracted him to monitor road construction activities near sequoia trees in Sequoia National Park and he's done a fantastic job.

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★★★★★

I listened to Scott Seargeant give a very interesting presentation at the 2026 IAPD/IPRA Conference. I had never even considered forensic analysis or general litigation for tree damage prior to hearing him speak.

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★★★★★

Very responsive, knowledgeable and professional. I contacted Scott Seargeant when my tall redwood trees were struck by lightning. He was quick to respond and immediately began assessing the trees for damage and safety issues.

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Forensic Failure Analysis & Expert Witness.

Forensic Failure Tree Analysis & Expert Witness

o	Strategic Arborist Consulting (Pre-construction & Inventories).

Strategic Arborist Consulting (Pre-construction & Inventories)

o	High-End Preservation & Structural Management.

Complex High-End Preservation & Structural Management

o	Tree Risk Assessment (TRAQ) & Valuation

Tree Assessment & Valuation

As Seen On

The Voice
for the Trees:

2026-2027 Engagements.

I am now booking professional workshops and keynote speaking engagements

I share the lessons learned from nearly five decades as a leading arborist in the United States, Canada, and Mexico to educate the next generation of professionals.

Trust the Experience of a Certified Arborist

Based in Visalia, serving
California and beyond.

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