Talking Trees

Mark Johnston - Lifelong Arborist

Arboricultural Academy Season 2025 Episode 132

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0:00 | 19:55

In this Friday episode of Talking Trees, we celebrate the remarkable career of Dr. Mark Johnston, a pioneer in urban forestry whose life’s work has shaped tree care across the UK and beyond. Drawing from his autobiographical reflections in the 2024 TREES e-book, this episode offers a personal and professional journey through decades of dedication to arboriculture.

We explore:

  • Mark’s early life and how his passion for trees developed
  • His academic and professional path across London, Wales, and Northern Ireland
  • Key projects and collaborations that influenced urban forestry policy and education
  • The intersection of social values, politics, and green infrastructure
  • Insights on how urban forestry has evolved—and where it’s going next

Listeners will be inspired by Mark’s commitment to trees, communities, and sustainable cities.

Background information:

  • Planting Ideas in the Urban Forest (https://markjohnstontrees.com/free-ebook/)
  • https://markjohnstontrees.com


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Introduction to Mark Johnston's Journey

Roger

Talking Trees with Lillian Jad. Welcome to Talking Trees. Today we explore a book that traces the life of Mark Johnston from his Scottish roots and childhood in England to his professional journey in arboriculture and forestry. The work details his experiences in Welsh forests, academic pursuits in arboriculture and involvement in urban forestry projects across Britain and Ireland. It also highlights his roles with organizations like Forest of London, his work as a consultant and educator, and addresses the social and political dimensions of urban tree management, enriched by personal anecdotes and reflections from his experiences in the USA and China.

Jad

Welcome back everybody. Today we're going to be looking at a career I think you'll find really interesting. Okay, you've heard of Mark, right yeah, legendary in our field, but his story isn't the typical climb the ladder kind of tale. Right story isn't the typical climb the ladder kind of tale. Right, it's more like um imagine a massive oak with roots stretching back generations okay branches reaching across continents yeah, that's a good way to put it.

Lilly

So what strikes me is how, like, even those early years that seemed completely unrelated to trees, actually like, actually like, shaped his path Almost like he was collecting different tools and skills.

Jad

Yeah.

Lilly

Not even knowing that they were going to be crucial later.

Jad

Right, like his family history.

Lilly

Uh-huh.

Jad

Deeply rooted in the land. You know, yeah, grandfather in World War I, mm-hmm, his father working the fields in World War II Right, they weren't gardeners themselves. But work in the fields in World War II Right, they weren't gardeners themselves.

Lilly

but that connection to the outdoors must have left a mark Absolutely, and you see that independence streak pretty early on too.

Jad

Yeah.

Lilly

Remember how he got expelled from school, not for misbehaving Right, but for refusing to study. Yeah, he was a guy who needed to find his own way.

Jad

His own purpose.

Lilly

Yeah, exactly.

Jad

Yeah, and he found it.

Lilly

In the most unexpected place.

Jad

Brushful Forest in Wales.

Lilly

Yeah, you can almost picture him there, right.

Jad

Yeah, that guy Surrounded by these towering trees.

Lilly

Finally feeling like he'd come home.

Jad

Yeah.

Lilly

It's fascinating how that experience really shaped him.

Jad

Yeah.

Lilly

There's this anecdote about Mark felling these spruce trees that his foreman had actually planted decades earlier, almost like cutting down the past. You know, it must have sparked some deep thoughts about the cyclical nature of trees, their lifespan, their impact on the landscape.

Early Career in Welsh Forests

Jad

Get this. He was hanging out with a mix of Welsh locals and English hippies who moved there for a simpler life. Really Talk about bridging different worlds, wow. I mean, as arborists, we know how important that skill is right.

Lilly

Oh yeah.

Jad

Connecting with people from all walks of life.

Lilly

It's essential.

Jad

Yeah, and that ability to connect, yeah, to understand different perspectives, that's a thread you see throughout Mark's entire career. Absolutely, totally so. Picture this Okay 1974, mark leaves the Forestry Commission, buys his own chainsaw and goes independent.

Lilly

Wow.

Jad

As fellow arborists, we know the risks of working the timber like that right. Oh yeah, those experienced guys warned him about the danger, how it either wises you up about safety or ends your career altogether.

Lilly

It's a testament to his courage and determination. Right, he wasn't afraid of hard work, he wasn't afraid to push himself and even with all those risks, he was drawn to that challenge, that freedom of being his own boss.

Jad

But then he makes this surprising move. Okay, he enrolls at Marist Wood College, not for general forestry but specifically for tree surgery. Interesting, it's like he was shifting his focus from those wild landscapes to the more intricate world of urban trees.

Lilly

It's a big shift, for sure.

Jad

Yeah.

Lilly

It wasn't all smooth sailing either.

Jad

Oh really.

Lilly

Think about this the guy who'd spent years in the forest actually struggled with tree identification at first. Wow it just goes to show.

Jad

Yeah, even for someone as experienced as Mark, there's always something new to learn. He went from a basic tree guide to diving headfirst into Mitchell's field guide and the Hillier manual. He was determined to master this new world, this new language of urban trees. And it wasn't just book learning Right, he had to get his hands dirty, literally. Yeah, mastering techniques like his hands dirty, literally. Mastering techniques like budding and grafting. There's even a story about him injuring himself while practicing. Talk about dedication. I bet that giant sequoia at the college entrance made an impression on him too. Remember how he tackled that killer commute From Hampton Wick to Marist Wood. He teamed up with a fellow student, sharing the drive and the costs. Small, resourceful right.

Lilly

Yeah.

Jad

Shows that even back then he was a problem solver, finding ways to make things work.

Lilly

Yeah.

Jad

A valuable skill for any arborist, wouldn't you say?

Lilly

Absolutely, absolutely. It's that kind of practical thinking that sets a good arborist apart, and those skills were put to the test when Mark landed that job at Crawley Borough Council managing those historic pleasure grounds, I mean some of those trees dated back to the 1800s. Can you imagine the stories they could tell?

From Forester to Educated Arborist

Jad

It's a whole different world from those wild Welsh forests right, oh yeah. Here he was caring for trees that had witnessed generations come and go Right, trees that were part of the community's history.

Lilly

Absolutely. It must have deepened his appreciation for the cultural significance of trees.

Jad

Yeah.

Lilly

Their role in shaping our urban landscapes.

Jad

And then boom, he takes another leap.

Lilly

What's next?

Jad

He teams up with James. Oh Fellow arborist. Uh, Another leap. What's next? He teams up with James, fellow arborist starts his own tree surgery company. They weren't afraid to go for the big jobs either.

Lilly

Like what.

Jad

Remember that contract at Frogmore Gardens? No, they were rigging massive 120-foot elm trees. Wow, carefully lowering sections near that historic gatehouse and those delicate hedges.

Lilly

You know, that's the kind of project that separates the pros from the amateurs.

Roger

Right.

Jad

It required a unique blend of skill, precision and nerves of steel. Yeah, they were pushing boundaries, refining techniques, really putting their expertise on the line.

Lilly

Yeah, and their partnership was more than just about technical skills, wasn't it?

Jad

Right.

Lilly

They had this shared work ethic, this dedication to quality.

Jad

Yeah.

Lilly

That's crucial when you're running your own business.

Jad

It was a true partnership Right, each bringing their own strengths to the table.

Lilly

Yeah, james had the business savvy and a knack for machinery.

Jad

Right and Mark brought that deep knowledge of trees and that ability to plan those complex operations.

Lilly

They balanced each other out perfectly.

Jad

Yeah, and even though they had some pretty different views, especially when it came to politics, they managed to avoid those clashes and focus on that shared passion for trees.

Lilly

That's a valuable lesson in itself.

Jad

Right.

Lilly

Absolutely. Sometimes you have to set aside those differences and focus on the common ground, especially when you're building a business together.

Jad

Right.

Lilly

But Mark's thirst for knowledge, that desire to keep growing it, eventually led him back to Marist Wood.

Jad

Oh, wow.

Lilly

This time as an instructor.

Jad

Talk about coming full circle, right? He could have easily stayed in the commercial world.

Lilly

Yeah.

Jad

But he felt that pull towards education, towards shaping the next generation of arborists.

Lilly

It shows a real commitment to the field.

Jad

Yeah.

Lilly

He wasn't just content with his own success. He wanted to pass on that knowledge, that passion to others.

Jad

Right.

Lilly

And it was during this time that he really started to delve into the people side of urban forestry.

Jad

He was reading John Anderson's work connecting with other pioneers, realizing that there was so much more to this profession than just technical skills.

Lilly

It was like a whole new world was opening up to him. Right, he was starting to see that bigger picture.

Jad

Yeah.

Lilly

Those intricate connections between trees, people and the urban environment.

Jad

He was moving beyond the howl of tree care and exploring the why, the social, cultural, even political dimensions of our work.

Lilly

And that shift in thinking led him to Harrow, where he took on the role of forestry officer. Now he wasn't just responsible for trees he was managing staff, juggling budgets, navigating the complexities of local government.

Jad

It was a whole different set of challenges.

Lilly

Right.

Jad

He had to learn to be a leader, a decision maker and sometimes even a bit of a politician.

Lilly

And he had to learn fast.

Jad

Yeah.

Lilly

Remember that story about his detailed tree management report being basically ignored by the council.

Jad

Oh yeah.

Urban Tree Management Innovations

Lilly

It was a wake up call to the realities of working within a bureaucracy. It's a lesson we've all probably learned at some point.

Jad

Oh yeah, for sure.

Lilly

Even with the best intentions, even with solid data, sometimes those decisions come down to budgets and politics.

Jad

Absolutely. But even with those frustrations, Mark found ways to make a difference. Like what he implemented this innovative approach to reducing insurance claims related to trees.

Lilly

Okay.

Jad

Saving the council a significant amount of money.

Lilly

Resourceful.

Jad

Right. He wasn't afraid to think outside the box.

Lilly

Yeah.

Jad

To find practical solutions that benefited both trees and the community's bottom line.

Lilly

It shows a real understanding of how to navigate those complex systems.

Jad

Yeah.

Lilly

To find those win-win solutions.

Jad

And it's a theme you see throughout his career that ability to adapt, to innovate, to find creative ways to achieve his goals.

Lilly

Absolutely, and let's not forget his early work promoting tree equity in Wandsworth Right. He saw firsthand the stark difference in tree cover between wealthy and less affluent neighborhoods and he was determined to address that imbalance.

Jad

He recognized that access to trees, to green space, is a matter of social justice. Absolutely it's about ensuring that everyone, regardless of their background or zip code, can enjoy the benefits that trees bring to our cities.

Lilly

It's an issue that's still relevant today.

Jad

Very much so.

Lilly

And Mark was one of the first to really champion that cause.

Jad

Yeah, he was a true pioneer, A visionary who saw the potential of trees to transform not just our landscapes but our communities as well.

Lilly

For sure, for sure. And his work in Wandsworth was just the beginning. After a short and challenging stint at Kew Gardens, mark found himself at Avery Hill College diving into environmental studies.

Jad

Yeah, it's like he was constantly pushing himself to learn more Right To expand his understanding of the natural world.

Lilly

That drive to keep learning.

Jad

Yeah.

Lilly

So inspiring.

Jad

He could have easily settled into a comfortable routine.

Lilly

Right.

Jad

But he was always looking for new challenges, new ways to contribute.

Lilly

Exactly, and even when financial pressures kind of forced him back into work, he landed on his feet, teaching at Ascombrine College in Yorkshire.

Jad

Quite a change from the hustle and bustle of London.

Lilly

Yeah, it shows his adaptability, doesn't it?

Jad

It does.

Lilly

Embrace that change, throwing himself into teaching writing and advocating for community forestry.

Jad

Yeah, his impact was growing, reaching beyond the classroom into the wider world.

Lilly

Absolutely Speaking of impact. This is where his research really starts to take off.

Jad

Yeah.

Lilly

He publishes his first academic paper on urban trees and ecological landscape design a sign of things to come.

Jad

It marked a turning point.

Lilly

Right.

Jad

He was bridging that gap between practical experience and academic research, adding his voice to those crucial conversations shaping the future of our field.

Lilly

Absolutely. And he wasn't just writing for academics. Remember his groundbreaking paper on the sociological approach to urban forestry.

Jad

He was a pioneer in bringing those social science perspectives into our world For sure, showing how crucial it is to understand that human element in urban tree management.

Lilly

Absolutely. He was ahead of his time, recognizing that it's not just about the trees themselves, it's about the people, the communities those complex interactions between the natural and the built environments.

Jad

And he wasn't afraid to get his hands dirty. Yeah, putting those ideas into action With green deserts. Yeah, they were organizing tree fairs. Uh-huh, promoting community forestry.

Lilly

Right.

Jad

Even dealing with curveballs, like the potential arrival of the peace convoy.

Lilly

Remember those headlines.

Jad

Oh yeah.

Lilly

It shows how real world work often throws you a curveball.

Jad

Right.

Lilly

But Mark was always up for the challenge Adapting, yeah, finding those creative solutions.

Jad

Yeah.

Lilly

Never losing sight of his goals.

Jad

And then there's his international work, teaching in Hong Kong.

Lilly

Oh yeah.

Jad

Connecting with arborists from all corners of the globe.

Lilly

He was building bridges across continents, sharing his knowledge and passion for trees.

Jad

Yeah, with the world.

Lilly

Right, it speaks to the universal language of trees, doesn't it?

Jad

It does.

Lilly

No matter where you go, that connection with nature, the challenges and rewards of urban forestry, it resonates with people everywhere.

Jad

And that trip to St Petersburg. Remember that.

Lilly

Oh yeah.

Jad

He was struck by the city's dedication to trees, even during wartime, visiting that Komarov Botanical Institute, walking those grand avenues lined with trees, learning how they preserved that green heritage through the siege of Leningrad.

Lilly

Talk about resilience.

Jad

Yeah.

Lilly

It's a powerful reminder that even in the face of incredible hardship, people find solace and strength in nature.

Jad

Yeah, those trees became Symbols of hope, of continuity, of the enduring human spirit.

Lilly

For sure and remember that chance encounter with the Chinese professor whose supervisor actually discovered the Dawn Redwood.

Jad

It's like our world. Is this interconnected web full of these fascinating connections and stories just waiting to be uncovered?

Lilly

It's those unexpected encounters that often lead to the most valuable insights, don't they?

Jad

They do. And speaking of connections, yeah. There's that meeting with Dick Abbott, leading figure in the American tree care industry. It's amazing how those relationships can shape a career Right, open doors to new possibilities.

Lilly

Absolutely, and those connections would lead Mark, to some incredible experiences, like leading the Glasgow Urban Forestry Initiative yeah, like leading the Glasgow Urban Forestry Initiative, establishing the TreeWise organization, transforming derelict land into these thriving woodlands.

Jad

They were providing training and jobs for disadvantaged youth. It shows how urban forestry can be such a powerful force for social change, creating opportunities, empowering communities, bringing people together around a shared passion for nature.

Lilly

Absolutely. Then there's Belfast. Oh yeah, a city grappling with the troubles. Right Mark took on that Forest of Belfast project, navigating those incredibly complex political dynamics, building trust across communities, showcasing that healing power of trees.

Jad

That took immense courage and sensitivity. It did.

Lilly

That took immense courage and sensitivity it did. He had to be so mindful of every word, every action, recognizing that even the smallest gesture could be misinterpreted in such a charged environment.

Jad

He even chose not to display a British Legion sticker on his car.

Lilly

Right.

International Impact and Social Initiatives

Jad

Understanding the potential for even the smallest symbol to be divisive.

Lilly

He was walking a tightrope, yeah, but he never lost sight of his mission to bring people together through a shared love of trees.

Jad

It's a testament to his diplomatic skills and his deep belief in the unifying power of nature.

Lilly

And he got things done securing funding, organizing events, bringing people from all sides of the conflict together.

Jad

And he even managed to secure free PR services from Morrow Communications.

Lilly

Talk about thinking outside the box.

Jad

It's that kind of strategic thinking.

Lilly

Yeah.

Jad

That separates the good from the great.

Lilly

He was a master at leveraging his network, building partnerships, finding creative solutions to overcome obstacles. It's a lesson we can all learn from Don't be afraid to reach out. Yeah, to build those relationships, to seek support from those who can help us achieve our goals.

Jad

And he didn't shy away from the realities of the conflict either. Remember his story about the bomb explosion near his office.

Lilly

Oh yeah, it was a stark reminder of the danger, the fear that permeated everyday life in Belfast.

Jad

It shows his resilience Right, his commitment to his work.

Lilly

Yeah.

Jad

Even in the face of incredible adversity.

Lilly

He didn't let those challenges paralyze him. He channeled his energy into creating those spaces of beauty, peace and hope.

Jad

Yeah, after Belfast he returned to teaching at Myers-Goff College, sharing his vast experience, mentoring a new generation of arborists and continuing his research.

Lilly

It was a time of reflection, of passing the torch, but also of new beginnings.

Jad

It's amazing how his career kind of comes full circle.

Lilly

Right.

Jad

Returning to his roots in education.

Lilly

Yeah, he was imparting not just knowledge but wisdom, shaping not just skills but mindsets.

Jad

And he was still pushing boundaries leading the trees in Townes' the second research project.

Lilly

Uh-huh, that was a landmark, study.

Jad

Yeah, providing crucial data on local authority tree management practices.

Lilly

And remember how the media kind of sensationalized those findings.

Jad

Oh yeah.

Lilly

They focused on the negative Right, but the real value was in the data, the insights it provided.

Jad

Right. It's a reminder that sometimes the most important work doesn't grab the headline.

Lilly

For sure, but for those of us in the field, that research was invaluable, helping us understand the challenges and opportunities facing urban forestry.

Jad

Absolutely. And then there's the Trees, people and the Built Environment conferences he organized.

Lilly

Yeah, he brought together academics, practitioners, people from all over the world to share their knowledge and chart a course for the future of urban forestry.

Jad

He created a platform for collaboration, for that cross-pollination of ideas, recognizing that the biggest challenges require collective effort and shared knowledge.

Lilly

And he even managed to secure a video message from Prince Charles for one of the conferences.

Jad

I know that personal touch, that ability to inspire and rally support.

Lilly

Yeah, it's, something special.

Jad

Shows how his passion was contagious.

Lilly

He had this way of bringing people together, motivating them to work towards a common goal. Even in retirement, he's focused on his passion for the history of arboriculture, publishing trees in towns and cities.

Jad

Amazing resource for anyone interested in understanding the evolution of our field.

Lilly

It's a fitting capstone to an extraordinary career. He's not content to rest on his laurels he's still exploring, researching, sharing his knowledge, ensuring that the lessons of the past inform the decisions of the future.

Jad

Mark's journey is a testament to the power of passion, perseverance and a deep commitment to the well-being of trees and people.

Roger

It is.

Jad

He's shown us that arboriculture is more than just a job. It's a calling, a way of life. He's challenged us to think beyond the technical aspects of tree care, embrace those broader social, cultural and ecological dimensions of our work.

Lilly

Absolutely, and he's reminded us that we're all part of something bigger. Yeah, a global community working towards a greener, healthier, more beautiful world.

Jad

What a legacy.

Roger

Thank you for joining us Today. We trace the life and career of Mark Johnston from his Scottish beginnings and English upbringing to his significant contributions in arboriculture and urban forestry across Britain, ireland, the USA and China. We explored his practical experiences, academic endeavors and engagement with key organizations in the field, along with reflections on the social and political dimensions of urban tree management. We appreciate your attention and look forward to our next discussion.

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