Events
Rhizos founder, Andie Marsh, is based in Austin, TX and passionate about sharing soil health principles and the wonder of microbes with others.
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Interested in a collaboration?
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Fill out this form to tell us about your event or project and we'll be in touch!
Upcoming Events
Getting Dirty: The Potential of the Ground We Walk On
February 18, 2026 | 5:30 PM – 7:30 PM | Austin, TX
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Is the ground beneath our feet the secret to a better climate future? Join us for this month’s Texas Futures Coalition meetup as we dig into the foundation of well...everything. We aren't just talking about dirt! We’re talking about a living, breathing ecosystem with the power to transform our landscape.
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Featured Presentation by Andie Marsh (Rhizos)
Andie will guide us through the high-stakes story of soil degradation and the surprising heroes of the restoration movement. You’ll discover why soil microbes are the unexpected powerhouses capable of cooling the planet, capturing water, and revitalizing our food systems.
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Whether you're a grower, an advocate, or just curious about the earth under your boots, come find out how the smallest organisms on Earth are making the biggest impact.
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2nd Annual Regenerative On-Farm Field Day​​
February 26, 2025 | 8am - 3:30pm | Hanford, CA
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Take back the farm! Discover practical, farmer-powered approaches to sustainable agriculture. Join us to learn innovative techniques designed to boost productivity while reducing reliance on costly external inputs.
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Featured Presentations by Andie Marsh (Rhizos)
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The Hidden Workforce: Intro to Soil Microbes — Meet your farm’s greatest assets: beneficial soil microbes. We’ll take a "microscope-view" of these tiny but mighty co-creators and discuss the specific cultivation techniques that either hinder or help them thrive.
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From Theory to Field: Applying Biological Amendments — A practical field talk focused on the tools of the trade. Learn about the equipment and methods used to successfully integrate biological amendments, such as compost extracts, directly into your field operations.
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What to Expect:
This full-day event is built on farmer-to-farmer storytelling, featuring accomplished speakers, live in-field demonstrations, and high-value networking with fellow producers and ag experts.
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30th Annual Herbal Forum & Plant Sale
March 13, 2026 | Round Top, TX
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Worm Bin Workshop
Come learn about the almighty earthworm and how to create and maintain a mini worm bin to turn kitchen scraps into a rich, living garden amendment!
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30th Annual Herbal Forum & Plant Sale
March 14, 2026 | Round Top, TX
Soil Stewardship: Microbes & Soil Regeneration
In this presentation you will learn practical ways to raise beneficial soil organisms to restore health to your garden's ecosystem from the ground up.
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Places We've Been Recently
August 4 - 5, 2025 | SFFFS Conference at Texas State University
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Compost Extracts: Simple, Scalable, Effective
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Compost extracts are an easy and efficient way to harness the biology of high-quality compost and deliver it directly to soil and plants. In this session, we’ll explore both the science and art of compost extract making—what it is, why it works, and how to apply it successfully. You’ll walk away with practical knowledge on different extraction and application methods, key considerations for success, and the confidence to incorporate compost extracts into your own soil health practices. Whether you’re a grower or compost-maker this session will provide actionable insights to help you get started.​
June 5, 2025 | 7:00 - 8:30 PM | Barton Springs Nursery
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Grow Tough: Composting For Resilient Gardens
Composting does not have to be complicated. Andie Marsh, founder of Rhizos LLC, will guide us on how to turn your soil into a thriving, living ecosystem that supports healthy, resilient plants—even in the peak of Texas heat.
We’ll explore how beneficial microbes contribute to drought-tolerant landscapes and how to raise such microbial communities right at home (and what not to do, too!).​
January 26 - 28, 2025 | TOFGA Conference | Pflugerville, TX
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Raising Microbes: Practical Composting for Busy Farmers and Gardeners
For many farmers and gardeners, maintaining a composting routine feels out of reach, leaving us with the familiar "debris pile" — that sad heap of tomato stalks, pruned branches, and other plant waste. In this session, we’ll explore how to turn that biomass into valuable compost in ways that fit seamlessly into your busy schedule, helping you make better use of your free resources.
November 19 - 23rd | R-Soil 2024 Online Conference
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Urban Soil Regeneration: How to be a soil steward in sub/urban contexts
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While much attention is given to soil regeneration in agriculture, urban and suburban landscapes can equally benefit from improved soil health and function! In this talk, we'll explore practical techniques for regenerating soil in sub/urban green spaces, helping you transform your own home and community landscapes into healthier, more resilient environments. By stewarding soil health in these contexts, we not only heal the land but also ourselves, as we become active participants and recipients of ecological solutions right where we live.​
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This presentation is part of the R-Soil Conference: the FREE Online Conference focused on Regenerative Soil, Regenerative Agriculture, Mycorrhizal Fungi, Compost, Biofertilizers, Biochar, Natural Farming, & More. Join in Nov. 19 - Nov 23rd.​
September 21, 2024 | 10:00 AM | The Natural Gardener in Austin, TX
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Underground View: What Makes for a Healthy Soil?
In this session, we'll discuss what characteristics differentiate a healthy, functional soil from a dysfunctional soil and explore practical ways we can nurture the underground ecosystem that supports our plants and sets us up for resilience in gardening.​
June 6, 2024 | 6:30 PM | Native Plant Society of Texas (NPSOT)
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​Explore the hidden world beneath our feet and discover the microbiome’s role in native landscapes. In this session, you will learn practical takeaways that will help you restore the relationship between soil microbes and native plants.
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Livestream Virtual Presentation | Register for Zoom Link
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April 14, 2024 | Austin, TX
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Compost Kickstart: The Art of Turning Food Scraps into Healthy Soil
Come learn how to successfully decompose food scraps, grass clippings, and other waste right at home.
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Gain hands-on experience by building a new pile in community with others at St. Edward’s University’s Food Forest. We’ll provide you with take-home resources to support your post-workshop composting journey!
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This is a free community event! Registration is required as we can accommodate a limited number of attendees.
April 19 - 21, 2024 | Fredericksburg, TX
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What Good Shall I Do Conference | Compost Workshop
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Starting a composting practice can feel intimidating, this workshop is meant to breakdown the barriers that may be preventing you from gaining momentum. Composting does not have to be complicated, and when done in a way that fits into the context of your life, it’s a rewarding practice that can bring us closer to our food and land!
This workshop is for registered attendees of the What Good Shall I Do Conference
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Force of Nature's annual "WHAT GOOD SHALL I DO" conference brings together ranchers, farmers, researchers, nutritionists, and conscious consumers for 2-3 days of education, networking, planning, and ACTION focused on regenerating ourselves and our landscapes. You don't want to miss this outdoor experience on the Pedernales River at ROAM Ranch!​​
March 14 - 15, 2024 | Oakwood, TX
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Regenerative Grazing for Soil Health: Managing the Livestock Above & Below Ground
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During this two-day workshop, we will concentrate on how we can manage the livestock above ground to help manage the livestock below ground, and create healthier pastures, livestock, and soil. This typically leads to reduced inputs and increased profits, together with increased carrying capacity leading to more production!
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Wayne Knight, Executive Director at HMI
Christine Martin, Owner at The Regen Ranch & The Regen Ranch Consulting
Andie Marsh, Owner at Rhizos LLC​​
February 28, 2024 | 8:30 AM | Oklahoma City, OK
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Working with Microbes
When placed under a microscope, what is the soil telling us? How do we respond? In this session, we will consider how soil biology informs us and how we can better participate in the soil ecosystem that supports aboveground vegetation​​
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This is a session at Oklahoma Association of Conservation Districts Annual Meeting (OACD)​
January 28, 2024 | 2:00 PM - 5:00 PM | San Antonio, TX
Soil Food Web Microscopy Workshop with Rhizos, Soil Again, and Dixonworks
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What's living beneath your feet? Come along with certified Soil Food Web lab-techs on a deep dive into soil biology. There will be presentations on important soil food web concepts in cultivation, how to read a biological report, and practical guidance on the "when" and "what" of biological soil sampling. We will have microscopes set-up to explore what's living in an assortment of soils, composts, teas, and extracts. Join us!​
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This is a pre-conference workshop for TOFGA 2024
December 10, 2023 | Circle Acres in Austin, TX
Next Level Composting: How to Create a Johnson-Su Bioreactor
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Learn how to make an excellent soil amendment in your own backyard by joining us in this hands-on workshop where we will learn about Johnson-Su Bioreactors together! A Johnson-Su Bioreactor is a low-maintenance, passive composting system that yields highly fungal compost!
This design was created by husband-wife duo, Dr. David Johnson and Hui Chun Su, during Johnson's PhD research at New Mexico State University. The method has since been modified to become very easy for backyard compost making.
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In this workshop we’ll observe a bioreactor created for Circle Acres Nature Preserve and discuss why and how the bioreactor works, as well as how to successfully build, maintain, and use the compost in a yard or garden.
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Led by Andie Marsh, Rhizos LLC, and Eric Paulus, Ecology Action of Texas.​