All Episodes

Episode 166: Debunking Cannabis Cultivation Myths with Dr. Deron Caplan

Episode 165: Boosting Yields 50% with a 13-Hour Photoperiod? Debunking Cannabis Science with Dr. Youbin Zheng

Episode 164: Mycotoxins & Microclimates: The Science of Cannabis Pathology with Dr. Nicole Gauthier

Episode 163: Concrete Botany: Reconnecting with the Living World in the Age of Disturbance with Joey Santore

Episode 162: Dips, Sprays, & Phytotoxicity: Mastering Oils in Cannabis Cultivation with Julie Graesch

Episode 161: The Secret Lives of Pathogens with Dr. Zamir Punja

Foundations Series #5: Reading the Soil: Agronomy, Soil Testing & Crop Health with Lee Briese

Foundations Series #4: What's Your Garden Missing? Cracking the Code of Applied Horticulture with Don Marshall

Foundations Series #3: The Soil Food Web: Science, Dogma, and Controlled Ecosystems with Tad Hussey

Foundations Series #2: Lean Farming & Efficient Cultivation Systems with Ben Hartman (Originally Episode 20)

Foundations Series #1: Silicon in Plant Health & Stress Resistance with Dr. Wendy Zellner (Originally Episode 98)

Episode 155: Entomopathogenic Fungi Explained: Blastospores, Beauveria, and Smarter IPM with Julie Graesch

Episode 154: Is Seed Based Cultivation the Future of Cannabis? - with Dr. Matthew Indest

Episode 153: Rethinking the Basics: pH, Water, Light & Nutrients with Bryant Mason

Episode 152: Light, Spectrum, and Plant Signals — A Practical Guide with Dr. David Hawley part 2

Episode 151: Light, Spectrum, and Plant Signals — A Practical Guide with Dr. David Hawley part 1

Episode 150: Plants Under Pressure: How Stress Shapes Secondary Metabolites (w/ Dr. José Leme)

Episode 149: Lighting Cannabis Right: 2025 Science & Strategy with MIGRO

Episode 148: 15,000 Clones a Year — Cannabis Propagation with Connor Ockfen

Episode 147: The Chemistry of Survival: Plant Stress Responses with Dr. Michael Gutensohn

Episode 146: Logan Labs, Soil Testing, & Nitrogen Management with Bryant Mason

Episode 145: Practical Greenhouse Management Advice with Jared Ferguson

Episode 144: Pest Management Tips and Tricks with Saul Alba

Episode 143: Trends in Environmental Controls with Dr. Greenhouse

Episode 142: Isopods, Pyrethrins, REIs, and More with Suzanne Wainwright Evans Pt. 2

Episode 141: Isopods, Pyrethrins, REIs, and More with Suzanne Wainwright Evans

Episode 140: The Sustainability of Peat and Other Substrates with Dr. James Altland

Episode 139: The Challenges of a Vertical Tier Farm with Christine DeJesus

Episode 138: Cannabis in Education & Critical Thinking with Christine Goedhart

Episode 137: Cannabis and Giant Pumpkins with Matthew DeBacco

Episode 136: Tissue Culture and Micropropagation with Dr. Adel Zarei

Episode 135: Running One Of The Largest Living Soil Facilities in the US with Adam Arnold

Episode 134: Cannabis Viruses and Viroids with Dr. Tassa Saldi

Episode 133: Molds, Mildews, & Mycelium with Dr. Nicole Gauthier

Episode 132: Optimal Cultural Practices and IPM Advice with George Grant

Episode 131: IPM and Beneficial Nematodes with Julie Graesch

Episode 130: Understanding Water Quality with Les Evans

Episode 129: Going Vertical With Living Soils With Chris Castle

Episode 128: Tips and Tricks from a Commercial Facility with Matthew Butters

Episode 127: Flushing and Photoperiod Research with Micheal Alden

Episode 125: The Latest in Biocontrols with Suzanne Wainwright Evans

Episode 124: Cannabis Nutrition with Bryant Mason part 2

Episode 123: Cannabis Nutrition with Bryant Mason part 1

Episode 122: Supplementary Podcast #2 - Mycorrhizal Fungi

Episode 120: Heavy Metal Contamination in Cannabis with Robert Thomas

Episode 119: Organic Microbial Solutions to Propagation with Victoria Holden and Charles Smith

Episode 118: Supplemental Podcast 1, The Soil Food Web

Episode 117: Cover Crops and Soil Testing with Steve Cantwell part 2

Episode 116: Soil Food Web, IPM, and Sustainable Cultivation with Steve Cantwell part 1

Episode 115: The Latest Research on Hop Latent Viroid with Dr. Jack Munz

Episode 114: Microbial Ecology in Cannabis with Dr. Colin Bell

Episode 113: The Importance of SOPs with Cassandra Maffey

Episode 112: Microbial Solutions for Plant Pathogens with Dr. Michael Brownbridge

Episode 111: Common Cultivation Questions with Brandon Hudson

Episode 110: Research on Powdery Mildew and Other Pathogens with Dr Nicole Gauthier

Episode 109: Nutrient Analysis and Tissue Testing with Dr. Cari Peters

Episode 108: Understanding Living Soil Fertility with Bryant Mason

Episode 107: The Impacts of Magnesium on Cannabis Cultivation with Paul Cockson and Patrick Veazie

Episode 106: A Review of Some of the Latest Research in Cannabis with Suzanne Wainwright Evans part 2

Episode 105: A Review of Some of the Latest Research in Cannabis with Suzanne Wainwright Evans part 1

Episode 104: Teaming with Bacteria with Jeff Lowenfels

Episode 103: Phosphorus Research in Cannabis with Paul Cockson and Patrick Veazie

Episode 102: Cannabis Genetics and Terpene Expression with Dr. Daniela Vergara

Episode 101: Plant Stress and Cannabinoid Relationships with Dr. Monique McHenry

Episode 100: Origins Podcast - Suzanne Wainwright Evans Interviews Tad Hussey

Episode 99: Common Cannabis Pests and Biological Controls with Steven Arthurs

Episode 98: Silicon - The Essential Nutrient with Dr. Wendy Zellner

Episode 97 The Importance of Terpenes and the Entourage Effect with Dr. Ethan Russo

Episode 96: Managing Soil Fertility Indoors with Mike Wilson

Episode 95: Diagnosing Deficiencies in Cannabis with Brandon Hudson

Episode 94: The Full Sensory Experience with Jeremy Plumb

Episode 93: The Science of Breeding Cannabis with Ryan Lee

Episode 92: Data Driven Fertigation at Pruf Cultivar with Sam Hoefler

Episode 91: Cornell University's Hemp Science Program and New Research with Dr. Heather Grab

Episode 90: University Fungicide Trials on Powdery Mildew with Rufus Akinrinlola

Episode 89: Understanding Heavy Metals in Soils with Dr. Anna Paltseva

Episode 88: Identifying PM Resistance Through Genetics with Dr. Jordan Zager

Episode 87: Details Matter with Ag Consultant Lee Briese

Episode 86: Controlling Environmental Conditions to Maximize Plant Health with Dr. Greenhouse

Episode 85: Viruses in Cannabis and Hemp with Dr. Jack Munz

Episode 84: Biocontrols and Cannabis - What's New in 2021 with Suzanne Wainwright Evans

Episode 83: Cover Crops and Soil Fertility with Dr. Abbey Wick

Episode 82: The Challenges and Potential of Tissue Culture with Dr. Kevin Mehr

Episode 81: Cannabis Accounting, Pitfalls and Pointers with Betsy Morem and Mark Waller

Episode 80: Exploring the Genetic Diversity of Cannabis with Dr. Eleanor Kuntz

Episode 79: Understanding Plant Growth Hormones with Dr. Jim Barrett

Episode 78: Benefits and Uses for Biochar with Tom Miles

Episode 77: Mycorrhizal fungi and the rhizosphere with Prof. Yoram Kapulnik

Episode 76: Cultivation Startups and Beanstalk Agriculture with Nelson Lindsley

Episode 75: Formulating Soils and New Products with Rob Knechtel of Black Swallow Living Soils

Episode 74: Targeted Nutrition Using Chemical Nutrients in Cannabis with Dr. Cari Peters

Episode 73: Quality vs. Quantity: Common misconceptions about grow lighting with Bruce Bugbee

Episode 72: Heavy Metals, Cover Crops, and Water pH with The Soil Doctor, Bryant Mason

Episode 71: Discovering the "why" in how plants grow with Don Marshall

Episode 70: Insect Frass and Mealworm Production with Virginia Emery

Episode 69: How a Facility Increased Yields by over 50% in 2 Years Using Science

Episode 68: Smart Questions to Ask Before Buying/Applying Products with Suzanne Wainwright-Evans

Episode 67 Bonus Episode: Flint Unity Farming Project

Episode 66: Trichoderma, Powdery Mildew, & Botrytis with Dr. Chris Hayes

Episode 65: Strategic Planning and Design for Indoor Cannabis with Brian Anderson

Episode 64 Part 2 Practical Pest Prevention Tips to Maximize Your IPM

Episode 63 Part 1: IPM Tips for Indoor vs Outdoor with Kelly Vance

Episode 62: Do Not Buy Ladybugs For Your Garden with Dr. JP Michaud

Episode 61: Agronomist Bill McKibben Explains Logan Labs Soil Tests and Potting Soils

Episode 60: Biocontrols Conference Episode with Multiple Guests

Episode 59: Identifying Deficiencies in Cannabis with Paul Cockson

Episode 58: The Science Behind the Cannabis Experience with Dr. Adie Rae

Episode 57: Published Research on Cannabis with Dr. Deron Caplan

Episode 56: Understanding Certifications with Andrew Black

Episode 55: Sun+Earth Certification with David Bronner, CEO of Dr. Bronner's Soaps

Episode 54: Listener Q & A with Tad Hussey

Episode 53: Biostimulants and Plant Growth with Colin Bell

Episode 52: Running a Commercial Facility using Living Soils with Justin Magill

Episode 51: Research in Cannabis Production with Dr. Ben Higgins

Episode 50: Jeff Lowenfels is back for our 50th episode!

Episode 49: Controlled Environment Agriculture and HVAC with Dr. Greenhouse part 1

Episode 48: Determining if LEDs are Right For You and Your Grow with Rebecca Knight

Episode 47: Plant Breeding and Genetic Testing Part II with Dr. Reggie Gaudino

Episode 46: Plant Breeding Using the Power of Genetic Testing with Reggie Gaudino

Episode 45: Hemp Regulations for 2019 with Michael Bowman

Episode 44: Documenting and Preserving Cannabis Cultivars with Dr. Eleanor Kuntz

Episode 43: Latest Research in Cannabis Cultivation with Dr. Allison Justice

Episode 42: Fertilizer and Pesticides in Cannabis with the Oregon Department of Agriculture

Episode 41: Q and A with Jeremy Plumb of Pruf Cultivar

Episode 40: Jeremy Plumb, Director of Production Science at Pruf Cultivar

Episode 39: Branding and Marketing Part 2 with Shango Los

Episode 38: Branding and Marketing with Shango Los

Episode 37: A Deeper Dive into Mycorrhizal Fungi with Jim Eagan

Episode 36: Plant Probiotics with Sarah Pellkofer

Episode 35: Mineral Balancing and Soil Test Analysis with Aaron Crozier

Episode 34: Are Bottled Nutrients a Thing of the Past? Nelson Lindsley Shares His Opinion and Announces a New Collaboration!

Episode 33: The Bug Lady is Back to Discuss Scouting and Cannabis Pests

Episode 32: Korean Natural Farming with Chris Trump

Episode 31: Learn from World Record Holder Ron Wallace about Giant Pumpkins and Yield

Episode 30: Powdery Mildew, Botrytis, and VPD with Travis Higginbotham

Episode 29: The Right Tool for the Job with Kurt Becker

Episode 28: How Fish Products Are Made And What The Differences Are with Casey Schoenberger

Episode 27: The Role of Lighting in Plant Growth with Fluence Bioengineering

Episode 26: The Hidden Half of Nature with Anne Biklé

Episode 25: Growing a Revolution: Bringing Our Soil Back to Life with Geologist David Montgomery

Episode 24: Running a Commercial Cannabis Facility with Nate Gibbs of Gold Leaf Gardens

Episode 23: Blumat Setup, Tips, and Tricks with Damian Koch

Episode 22: Blumat Irrigation with Steve Troy

Episode 21: Chris Jagger of Blue Fox Farms

Episode 20: LEAN Farming with Ben Hartman

Episode 19: Entomologist Suzanne Wainwright Evans aka 'The Bug Lady' is back!

Episode 18: A Deeper Look at Containers with William Evans

Episode 17: Understanding Soil Testing with Agronomist Kris Borgman

Episode 16: Permaculture and Cannabis with Jessi Bloom

Episode 15: Entomologist Suzanne Wainwright Evans aka "The Bug Lady"

Episode 14: All About Biochar with Renel Anderson

Episode 13: The Future of Cannabis Cultivation with Jaya Palmer

Episode 12: Biological Horticulture Consultant Jaya Palmer

Episode 11: Dr. Faust of BioAg on Humic and Fulvic Acids

Episode 10: Practical Advice for Increasing Yield with Nelson Lindsley

Episode 9: Lighting Technology and the Poetry of Plants with Nelson Lindsley

Episode 8: Clackamas Coot weighs in on "Neemgate", No-till, and the history of "The One"

Episode 7: Clackamas Coot talks about worm bins, peat moss, and building soil

Episode 6: Steve Solomon covers Soil Remineralization and Nutrient Density

Episode 5: Compost tea and microscope guru Tim Wilson talks living soil, vermicomposting, and soil exudates

Episode 4: David Perron discusses Living Soil, Insect Frass, and Commercial Production

Episode 3: Clackamas Coot talks Worm Castings, Malted Barley, Peat Moss, and Coot's Soil Mix

Episode 2: Jeff Lowenfels explains Mycorrhizal Fungi, Compost Teas, and the Soil Food Web

Episode 1: Introduction with Tad Hussey