Season 5

Episode 191 - Kevin Zuidervliet is owner and grower at Octoraro Native Plant Nursery, in Kirkwood, Pennsylvania.

Episode 190 - Randi Minetor is a best selling author. Her latest book is The Complete Language of Birds.

Episode 189 - Angelique Robb is the owner of SYNKD - a media company for landscape professionals.

Episode 188 - Celine Colbert is Pennsylvania's Tree Canopy Coordinator.

Episode 187 - Jessica (JJ) Käthe is the resiliency planting coordinator within the Climate Forestry & Carbon Unit at New York State Department of Environmental Conservation (NYSDEC).

Episode 186 - Tim Johnson is the Chief Executive Officer at the Native Plant Trust in Framingham, Massachusetts.

Episode 185 - Dr. Anna Paltseva is a distinguished urban soil scientist.

Episode 184 - Carlos Alvarez has been a part of the PowerCorpsPHL (Power Corps Philadelphia) team since March 2015.

Episode 183 - Dan Lambe is the CEO of the Arbor Day Foundation.

Episode 182 - Matthew Aghai currently serves the teams at Mast Reforestation and its subsidiaries.

Episode 181 - Jessica Turner-Skoff is Longwood Garden’s first Associate Director of Science Communications.

Episode 180 - Annaliese Bischoff is a Western Massachusetts artist and landscape architect.

Episode 179 - Marshall Green is a fourth-generation owner of Primex Garden Center in Glenside, Pennsylvania.

Episode 178 - Patricia Gallagher and John Kennedy from the Abington Shade Tree Commission

Episode 177 - Kom and Nui are both visionaries and are co-founders of the biochar initiative Wongphai Company, Limited.

Season 4

Episode 176 - Ben Shardlow is the Chief of Staff for the Minneapolis Downtown Council & Downtown Improvement District.

Episode 175 - Basil Camu is a Master Arborist and Co-Owner of Leaf & Limb in Raleigh, North Carolina.

Episode 174 - Sandy and Julia Shettler are a mother-daughter team with Tree Action Seattle, which advocates for Seattle’s trees at the neighborhood level and at City Hall.

Episode 173 - Erica Kratofil is Co-Executive Director for The Giving Grove, where she helps lead a national network of urban community orchard and food forest programs.

Episode 172 - Amy Stewart is the New York Times best-selling author of The Drunken Botanist, Wicked Plants and her new book The Tree Collectors.

Episode 171 - Dr. Glynn Percival is the Senior Arboricultural Researcher at the Bartlett Tree Research and Diagnostic Laboratory.

Episode 170 - Cyrus Copeland is a writer, nonprofit pioneer and founder of Treedom for Palestine.

Episode 169 - Dr. Christine Carmichael is the award-winning founder and principal of Fair Forests Consulting, LLC.

Episode 168 - Marielle Drennan is the owner of Champion Tree, a full-service plant health care company.

Episode 167 - Cliff Drouet is a Forester with the Office of Surface Mining Reclamation and Enforcement (OSMRE).

Episode 166 - John Perlin is a Professor and Visiting Scholar in the Department of Physics at University of California, Santa Barbara.

Episode 165 - Neelam Patil, M.Ed., MFA, is a Climate Literacy and Science Teacher in the Berkeley public school system.

Episode 164 - Robert Lundgren is the landscape architect at The University of Pennsylvania, in Philadelphia, Pennsylvania.

Episode 163 - Dave Muffly is a Board Certified Master Arborist who was Apple’s Senior arborist.

Episode 162 - Daniel Hinkley is a plantsman, author, lecturer, nurseryman, and horticultural consultant.

Episode 161 - Al Key is an owner of DeepRoot Green Infrastructure, LLC.

Episode 160 - Doug Oster is the Pittsburgh’s Garden Guru and host of the popular radio show The Organic Gardener on KDKA radio every Sunday morning.

Episode 159 - John Grimshaw is the Director of The Yorkshire Arboretum in North Yorkshire, UK.

Episode 158 - Richard McCoy is the own of Richard A. McCoy Horticultural Services Inc.

Episode 157 - Mark Richardson is the Director of Horticulture for the New England Botanic Garden at Tower Hill in Boylston, Massachusetts.

Episode 156 - Tim Boland is the Director of the Polly Hill Arboretum.

Episode 155 - Jason Ross is Managing Publisher at Wood Central - the world's largest news platform for forest-based news!

Episode 154 - Alec Charais leads the marketing and product development at Bailey Nurseries.

Episode 153 - Eva and Hal talk about highlights from their podcasts.

Episode 152 - Seth Lieberman co-founded Quiet Clean Philly. And Dr. Bonnie Sager is a Consulting Clinical Physician to the New York State hospital system.

Episode 151 - Ron Kinney is the production manager at Monrovia’s Oregon nursery.

Episode 150 - Ari Miller is the director of design at Hinge Collective in Philadelphia, Pennsylvania.

Episode 149 - Steven Kiiskila is the Crop and Growing Team Manager at Arbutus Grove Nursery, located at the southern tip of Vancouver Island, British Columbia, Canada.

Episode 148 - Joe Lamb, founder of the Borneo Project, is a writer, activist, and arborist living in Berkeley, California.

Episode 147 - Mark Krawczyk is co-owner and operates Keyline Vermont LLC, teaching, designing, and consulting for farmers, homeowners, and homesteaders.

Episode 146 - Asha-Lé Davis is the Trees Specialist for the Pennsylvania Horticultural Society (PHS).

Episode 145 - Paul Hickman is the founder of Urban Ashes a pioneering company the advocates for urban wood utilization.

Episode 144 - David Teuschler is the Chief Horticulturist for Devil Mountain Wholesale Nursery.

Episode 143 - Matthew Aghai is a dedicated reforestation expert, applied scientist, and executive leader at Mast Reforestation.

Episode 142 - Kim Shearer is the Curator of Living Collections and Manager of the Haerther Charitable Trust New Plant Development Program at The Morton Arboretum.

Episode 141 - Kristen Pullen is the Woody Ornamental Portfolio Manager for Star® Roses and Plants.

Episode 140 - Lars Peter Jensen is the head of sales, marketing, and business development and part owner of the Blackmore Company.

Episode 139 - Kathy Jentz is the editor and publisher of the award-winning Washington Gardener Magazine, based in Washington, DC.

Episode 138 - Kristin Ohlson is the author of Sweet in Tooth and Claw: Stories of Generosity and Cooperation in the Natural World.

Episode 137 - Nykia Perez Kibler and Jacelyn Blank are the founders of Philly Tree People.

Season 3

Episode 136 - Craig Roncace has been the Urban Park Manager for the University of Pennsylvania since April 2016.

Episode 135 - Markku Koivisto is chief business development officer for GLOBHE a Crowddroning company.

Episode 134 - Andrew Conboy created Colonial Canopy Trees a non-profit organization and works with Karen Kabnick in their mission for greening.

Episode 133 - Rick and Jacob Thaler own Dendrotechnology in Corrales, New Mexico.

Episode 132 - Jeff Lowenfels has the longest running garden column in the U.S. - His articles revealed climate change in real time.

Episode 131 - Hannah Lewis is the author of Mini-Forest Revolution: Using the Miyawaki Method to Rapidly Rewild the World

Episode 130 - Steve and Rebecca Ebner are a father and daughter team who own Mayanunk Timber in Philadelphia, Pennsylvania.

Episode 129 – Roby Babcock is the Marketing Director at Iseli Nursery, a wholesale dwarf conifer and maple grower located in Boring, Oregon. 

Episode 128 – Carey Russell is a naturalist, photographer, and founder of The Dendro Lab – New York, New York. 

Episode 127 – Leslie Berckes is the Executive Director of the Society of Municipal Arborists (SMA) – Des Moines, Iowa. 

Episode 126 – Jennifer Alger is President of Far West Products and has been working with urban salvaged woods for over 25 years – Olivehurst, California. 

Episode 125 – Paul Cox is principal and the Vice President at Environmental Design, Inc. Tomall, Texas. 

Episode 124 – Michael Taylor is an experienced nursery manger and grower – Bellville, Michigan.  

Episode 123 – Anthony Sebastian Buscaino works as a landscape architect for New York City Parks. 

Episode 122 – Tom Smarr is the Executive Director at Jenkins Arboretum& Gardens in Devon, Pennsylvania. 

Episode 121 – Kristin Biddle is a horticulturalist, trustee and  chair of the horticultural committee at Andalusia Historic House, Gardens, and Arboretum in Andalusia, Pennsylvania.

Episode 120 – Merissa MacDonald is an ISA Certified Arborist® and the Southwest Tree Program Coordinator at Bartram’s Garden in Philadelphia, Pennsylvania. 

Episode 119 – Sara Street is the green guru of First Community Foundation Partnership of Pennsylvania. 

Episode 118 – Rebecca Johnson is an ISA Certified Arborist® and true arborholic from Austin Texas. 

Episode 117 – Ethan Olson is the owner of Walburn Run Nursery located in Brockway, Pennsylvania. 

Episode 116 – Rob Shaut is the Director of Tree Operations at Casey Trees in Washington, D.C. 

Episode 115 – John Perlin is a professor and visiting scholar in the Department of Physics at the University of California, Santa Barbara and is the author of A Forest Journey.

Episode 114 – Sarah C. Low is a business management consultant, ecologist, educator and owner of Strategic Nature, LLC. in Tacoma, Washington. 

Episode 113 – Hugh Weldon is the Horticultural Manager at Villanova University in Villanova, Pennsylvania. 

Episode 112 – Mayor Tim Schultz of Hatboro, Pennsylvania is the first mayor to become a Tree Tender through the Pennsylvania Horticultural Society’s (PHS’) Tree Tenders Program. 

Episode 111 – Ashley Miles is the administrative production assistant at Ruppert Nurseries and Kelly Lewis is the general manager of Ruppert Nurseries in Gaithersburg, Maryland. 

Episode 110 – Jill Rose is the state forest pathologist with the Pennsylvania Department of Conservation and Natural Resources (DCNR) Bureau of Forestry. 

Episode 109 – Steve Shreiner is the founder and president of Shreiner Tree Care established in 1986 in King of Prussia, Pennsylvania.

Episode 108 – Sir Tim Smit KBE ‘discovered’ and restored The Lost Gardens of Heligan with John Nelson and is the founder of the Eden Project in Cornwall, England.

Episode 107 – Nan Sterman is a California native, garden expert, garden designer, author, botanist, and award-winning communicator – San Diego, California.  

Episode 106 – Anthony Tresselt is an ISA Certified Arborist®, arboricultural safety consultant, trainer and 30 year student of arboriculture and tree climbing. 

Episode 105 – Andrew Bunting is the Vice President of Horticulture at PHS (Pennsylvania Horticultural Society).

Episode 104 – Christy Rollinson is the forest ecologist at The Morton Arboretum in Lisle, Illinois. 

Episode 103 – Anelle Ammons is an ISA Certified Arborist® and an ISA Certified Arborist Utility Specialist®. 

Episode 102 – John Mahoney oversees Street Tree Revival, an urban wood recycling program founded by West Coast Arborists, Inc. 

Episode 101 – Tahia Devissher is a Banting Research and Teaching Fellow at the University of British Columbia (UBC) Faculty of Forestry. 

Episode 100 – Special Edition with Mike Toffan who is the founder and Executive Director of Project Forest – Edmonton, Alberta, Canada. 

Episode 99 – Theo Hooker is co-founder of Cambium Carbon, a climate tech company that builds local supply chains across the country. 

Episode 98 – Brice Dorwart is an ISA Certified Arborist® and Utility Specialist for Davey Resource Group. 

Episode 97 – Heather Andrews is a published author, photographer, and speaker – Lancaster, Pennsylvania. 

Episode 96 – David Barmon is owner of Epilogue LLC, a small-scale sawmill business just south of Portland, Oregon. 

Episode 95 – Glenn Eck is the Manager of Grounds and Urban Horticulture at Temple University in Philadelphia, Pennsylvania. 

Episode 94 – Michael Dunn is an innovative urban forest manager, consulting arborist, and owner of Brandywine Urban Forest – West Chester, Pennsylvania. 

Episode 93 – Michael Thiele founded Apis Arborea to preserve the life and resiliency of honeybees through Wilding – Sebastopol, California. 

Episode 92 – Dr. Ed Gilman is a professor emeritus from the University of Florida and is principal at Wood Architecture, Inc.

Episode 91 – Kevin Martin is the Head of Tree Collections at the Royal Botanic Gardens, Kew in London, England.

Season 2

Episode 90 – Dr. Clint Springer is an associate professor of biology at Saint Joseph’s University in Philadelphia, Pennsylvania. 

Episode 89 - Sophie Nitoslawski is passionate about finding ways to better integrate trees and green infrastructure into the fabric of our cities – Ottawa, Ontario, Canada. 

Episode 88 – Neil Hendrickson worked for Bartlett Tree Research Labs where he served as their Northeast Technical Specialist for over twenty years. 

Episode 87 – Cliff Drouet is a forester with the Office of Surface Mining Reclamation and Enforcement (OSMRE) which is a federal agency under the Department of the Interior in Kentucky. 

Episode 86 – Tom Kimmerer is a scientist, author, and photographer in Lexington, Kentucky. 

Episode 85 – Tavis Dockwiller is the founder, principal, and guiding influence of Viridian Landscape Studio. 

Episode 84 – Eliza Greenman is a tree crop specialist, horticultural historian, and agroforestry practitioner living in Northern Virginia. 

Episode 83 – Ian Hanou is a trees and technology-loving entrepreneur and CEO and Founder of PlanIT Geo in Arvada, Colorado. 

Episode 82 – Douglas Meney is the Director of Horticulture with the American Battle Monuments Commission (ABMC) in Washington, D.C. 

Episode 81 – Amanda Benner is a Principal Program Manager for Vegetation Management at PECO, an Exelon Company. 

Episode 80 – Dan Herms is Vice President of Research and Development for The Davey Tree Expert Company. 

Episode 79 – Anthony (Tony) Aiello is the Associate Director of Conservation, Plant Breeding and Collections at Longwood Gardens in Kennett Square, Pennsylvania. 

Episode 78 – Zhaohua (Cindy) Cheng is a Ph.D. candidate in urban forestry at the University of British Columbia (UBS). 

Episode 77 – Edward (Ned) Sibley Barnard is the author of New York City Trees: A Field Guide for the Metropolitan Area, Central Park Entire, Central Park Trees and Landscapes, and Philadelphia Trees.  

Episode 76 – Erica Smith Fichman is Community Forestry Manager at Philadelphia Parks &Recreation.

Episode 75 – Joe Hansen is the Urban Forester for the City of Park Ridge, Illinois. 

Episode 74 – Steve Blaes is an ISA Certified Arborist® and is trained in Tree Risk Assessment (TRAQ) – Baltimore, Maryland.

Episode 73 – Jake Handley is an ISA Certified Arborist® and works for Asheville Arborists in North Carolina.

Episode 72 – Dana Dentice is a Trees Program Manager and an ISA Certified Arborist® at the Pennsylvania Horticultural Society (PHS). 

Episode 71 – Jeffrey Ling is an ISA Certified Arborist®, Registered Consulting Arborist®, and Senior Consulting Arborist® in the State of Indiana. 

Episode 70 – Jan Johnsen is co-principal of the award-winning Johnsen Landscapes & Pools in Mount Kisco, New York. 

Episode 69 – David Bengston Ph.D. is an environmental futurist and social scientist with the Strategic Foresight Group of the Northern Research Station, USDA Forest Service in Minneapolis, Minnesota.

Episode 68 – Nathan (Nate) Shampine, CERP, is Mt. Cuba Center’s Natural Lands Manager in Hockessin, Delaware. 

Episode 67 – Brian “BK” Kohler has been the director of the Park Maintenance Institute since early 2020.

Episode 66 – Linda Langelo is a Colorado State University Extension, horticulture agent. 

Episode 65 - Melissa Custic is the operations manager for the Chicago Region Trees Initiative 

Episode 64 – Amber Grant is a Ph.D. candidate (ABD) in the Environmental Applied Science and Management program at X* University (formerly known as Ryerson University) 

Episode 63 – William Fuchs is the head gardener at Andalusia Historic House, Gardens, and Arboretum in Andalusia, Pennsylvania. 

Episode 62 – Mohamed M. Hassona is the head horticulturist at the Qur’anic Botanic Garden, the Qatar Foundation in Ar-Rayyan, Qatar

Episode 61 – Josh Behounek is the business development manager with Davey Resource Group

Episode 60 – Katie Dubow is president of Garden Media Group, a second-generation women-owned and run public relations firm specializing in the green industry in Kennett Square, Pennsylvania. 

Episode 59 – Special Edition with Jason Lubar in light of the recent tornados that have ravaged our Mid-Atlantic Region

Episode 58 – Tom Knezick is the general manager of Pinelands Nursery & Supply in Columbus, New Jersey.

Episode 57 – Megan Barstow is the Conservation Officer at Botanic Gardens Conservation International in London, England.

Episode 56 – Neil Pederson is a senior ecologist at the Harvard Forest in Petersham, Massachusetts.

Episode 55 – Jennifer Santoro is a visiting assistant professor in the Department of Geography and the Environment (GEV) at Villanova University 

Episode 54 – Dr. Allison Brown is a faculty member at Delaware Valley University where she teaches Biology in Doylestown, Pennsylvania. 

Episode 53 – Susan Day is a professor urban forestry in the Department of Forest Resources Management at the University of British Columbia in Vancouver, Canada

Episode 52 – Ari Miller is the Director of Design at Hinge Collective in Philadelphia, Pennsylvania

Season 1

Episode 51 – Bill Logan (William Bryant Logan) is founder and president of the Brooklyn-based tree company Urban Arborists 

Episode 50 – Dr. Ton Kendle is the Ecology Consultant for the Eden Project International which works on developments throughout the United Kingdom and around the world 

Episode 49 – Pandora Young and Scott Wade are both from Longwood Gardens in Kennett Square, Pennsylvania 

Episode 48 – Sara Fern Fitzsimmons is the Director of Restoration for the American Chestnut Foundation (TACF) at Penn State University (PSU) 

Episode 47 – John Holback is an open space technician for Midpeninsula Regional Open Space District in Los Altos, California 

Episode 46 – Corey Bassett is a Ph.D. student at the University of British Columbia in Vancouver, British Columbia, Canada

Episode 45 – Dr. Jun Yang is a professor in the Department of Earth System Science at Tsinghua University, China

Episode 44 – Andrea Whitely is a garden consultant in Perth, Australia 

Episode 43 – David Hewitt Helped research the book Philadelphia Trees: A Field Guide to the City and the Delaware Valley 

Episode 42 – Max Paschall is the native plants coordinator at the Schuylkill Center for Environmental Education 

Episode 41 – Alan M. Jones is the President of Manor View Farms in Monkton, Maryland

Episode 40 – Special Edition – The Pennsylvania Horticultural Society’s Philadelphia Flower Show

Episode 39 – Jason Lubar is employed at Morris Arboretum of the University of Pennsylvania as the Associate Director of Urban Forestry

Episode 38 – Konstanze Fabian is an ISA certified arborist and local manager for Bartlett Tree Experts in Littleton, Colorado.

Episode 37 – Alex Smith is the owner of Division Street Landscaping, which is entirely staffed by ex-offenders in Baltimore, Maryland. 

Episode 36 – Jim Duggan leads the marketing and sales operations for Rootmaker Products Company, Inc. in Georgia. 

Episode 35 – Carol Wagner is a longtime horticulturist at Haverford College in Haverford, Pennsylvania a suburb of Philadelphia

Episode 34 – Phil Forsyth currently serves as Co-Executive Director of the Philadelphia Orchard Project (POP)

Episode 33 – Dwayne Sperber is the founder and owner of Wudeward Urban Forest Products and is a member of the Urban Wood Network in Milwaukee, Wisconsin. 

Episode 32 – Lara Roman is a Research Ecologist with the USDA Forest Service, Northern Research Station, Philadelphia Field Station

Episode 31 – Daan Bleichrodt is Chief Tree Planting Officer at the IVN Environmental Education – Tiny Forest the Netherlands

Episode 30 – Lori Hayes is the Director of Urban Forestry in Philadelphia. 

Episode 29 – Diane Ehrich is the owner of Collins Nursery, a small retail nursery in Glenside, Pennsylvania

Episode 28 – Richard McCoy is the owner of Richard A. McCoy horticultural Services Inc. in Ringoes, New Jersey. 

Episode 27 – Abra Lee is a national speaker, writer, and owner of Conquer the Soil near Hampton, Virginia. 

Episode 26 – Max Blaustein is an environmental scientist with the Philadelphia Department of Parkes & Recreation’s Natural Lands Management team

Episode 25 – Robin Rick is the facilities and landscape manager at the The Woodlands in Philadelphia, Pennsylvania. 

Episode 24 – Jordan Foreman is a foreman and plant healthcare specialist for Bartlett Tree Experts in North Carolina. 

Episode 23 – Dale Hendricks is the owner of Green Light Plants, LLC in Landenberg, Pennsylvania. 

Episode 22 – Hasan Malik is the owner of the Tree Authority in Perkasie, Pennsylvania 

Episode 21 – Michael Dunn’s area of focus since 2016 has been the integration of the urban forest into urban and regional planning in Southeastern Pennsylvania and beyond. 

Episode 20 – Steve Goin is the Director of and Facilities at the Schuylkill Center for Environmental Education in Philadelphia, Pennsylvania.  

Episode 19 – Aaron Greenberg is the Arboretum Manager for Laurel Hill and West Laurel Hill Cemeteries in Philadelphia and Bala Cynwyd, Pennsylvania. 

Episode 18 – Bob Wells works for Wells Tree & Landscape in Princeton, New Jersey 

Episode 17 – Charles King Sadler is a designer, arborist, and educator at King Garden Designs, Inc. in Houston, Texas. 

Episode 16 – Joan Maloof is a writer, ecologist, a conservationist, and the founder of the Old-Growth Forest Network in Easton, Maryland. 

Episode 15 – Maria Zampini 4th generation nurseryman and owner of UpShoot LLC in Madison, Ohio. 

Episode 14 – Nancy Buley is Director of Communications for J. Frank Schmidt & Son Co., wholesale tree growers of Boring, Oregon

Episode 13 – Andy Schenck is the Manager of Sam Browns Wholesale Nursery in Malvern, Pennsylvania. 

Episode – 12 John Berryhill is Landscape Curator at Smith College in Northampton, Massachusetts.

Episode 11 – Patrick Joyce is the Nursery Manager at Longwood Gardens in Kennett Square, Pennsylvania. 

Episode 10 – Christopher Uhland is President of Operations and Business Development at Harmony Hill Nursery in Downingtown, Pennsylvania. 

Episode 9 – Paul Meyer is the retired F. Otto Haas Executive Director of the Morris Arboretum. 

Episode 8 – Julianne Schieffer is Penn State Extension Urban Forester. 

Episode 7 – Jennifer Walker is Head Gardener at the Barnes Arboretum at St. Joseph’s University in Merion Station, Pennsylvania.  

Episode 6 – John Berryhill is Landscape Curator at Smith College in Northampton, Massachusetts.

Episode 5 – Julie Snell is a Landscape Architect and Principal at TEND landscape inc. in Media, Pennsylvania. 

Episode 4 – Louise Clarke is the horticulture leader at Morris Arboretum’s Bloomfield Farm. 

Episode 3 – Kathy Jentz is the Editor of the Washington Gardener Magazine. 

Episode 2 – Bob (Robert) Gutowski is the Director of Visitor Experience and Education for Morris Arboretum. 

Episode 1 – Mindy Maslin is the founder and Director of Pennsylvania Horticultural Society’s (PHS’) Tree Tenders program in Philadelphia, Pennsylvania.