Healthy Roots
Tree Care

ISA Board certified arborist & pruning specialist

Ecological
Thoughtful
Skilled
Observant
Reliable
Collaborative
Holistic

​My mission is to foster beauty and resilient trees and landscapes. I work to support nature’s capacity to thrive, and to help people see and appreciate its beauty through thoughtful, intentional tree care.

About Me
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Artisan Pruning & Holistic Tree Care

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Teaching & Workshops

I offer classes throughout the year on topics like seasonal orchard care, soil health, and more.

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Asthetic Pruning

Aesthetic pruning is where horticultural science meets artistic interpretation.

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Standard Tree Care

For clients needing functional tree work, I’m here to help.

Founder & CEO
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Hi, I'm Josias the heart and hands behind Healthy Roots.

​I approach tree care with deep respect for nature and its natural expression. Trees are part of our homes and landscapes because they bring beauty, calm, and a sense of connection, while also providing vital ecological benefits to the places we live. My work is dedicated to supporting that relationship with care and intention. Drawing on years of horticultural education and hands-on experience, I combine technical knowledge with close observation and intuition to make thoughtful pruning decisions that honor each tree’s structure, growth patterns, and long-term vitality.
Josias
Harder

Bonnie Friedmann , Property Owner

I am so appreciative of Josias’ command of the best practices for pruning as well as his excellent knowledge about tree care and health, including seasonal timing. I learn so much from him. I can’t say enough about Josias’ great personality, especially his receptivity to a collaborative approach that values my input as an owner. The wealth of information Josias has shared with me over the years has helped me become a better steward of my trees.”

Toni, Property Owner

“When I met Josias for the first time, I knew he was very talented. We walked my garden and I talked about my thoughts and he listened carefully and made additional suggestions for pruning for my hawthorns that had been poorly pruned years ago. And soon he suggested other pruning on shrubs, my apple tree and bougainvillea. I am so pleased with his expert redesigning of my awkwardly pruned trees. He is knowledgeable, clear with expected costs and very quickly made me smile with the beautiful row of hawthorns."

Martin Brugger, Former Garden ManagerCamphill Communities California

"Josias managed and cared for our diverse orchard system for five years, overseeing nearly 70 fruit, citrus, and olive trees. He developed yearly care plans, performed seasonal pruning, monitored tree health, and managed the orchard using organic and biodynamic methods, including integrated pest management and thoughtful soil stewardship. His work combines strong horticultural knowledge, careful observation, and a deep commitment to land stewardship."
"Josias has been caring for the trees and large shrubs on our property for over four years, and his work has been exemplary. He combines strong technical knowledge with a long-term vision and a deep respect for the living systems he stewards. From pruning and structural training to planting and tree health assessments, I trust his judgment completely. He is professional, thoughtful, and a joy to work with."

Douglas Jones
Steward of a 1.75 acre Certified Wildlife Habitat Garden 

"We've observed tangible enhancements in both the quality of our crops and our operational efficiency since collaborating with them."
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Jaycee Wilkins

"Since teaming up with them, we've experienced remarkable enhancements in both the quality of our crops and the efficiency of our operations!"
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Roman Sumner

We’ve experienced remarkable enhancements in both the quality of our crops and the efficiency of our workflows."
“We’ve seen measurable improvements in both crop quality and operational efficiency since partnering with them.”
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Rebecca Truj

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Let’s care for your land together.
Let’s work together
Let’s work together