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Andie is passionate about sharing soil health principles and the wonder of microbes with others. This is where you can find her next! 

Interested in a collaboration? 

Fill out this form to tell us about your event or project and we'll be in touch!

January 28, 2024 | 2:00 PM - 5:00 PM | San Antonio, TX


Soil Food Web Microscopy Workshop with Rhizos, Soil Again, and Dixonworks

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!

Registration Link

This is a pre-conference workshop for TOFGA 2024

February 28, 2024 | 8:30 AM | Oklahoma City, OK

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

Registration Link

This is a session at Oklahoma Association of Conservation Districts Annual Meeting (OACD)

March 15 - 16, 2024 | Palestine, TX

Regenerative Grazing for Soil Health: Managin the Livestock Above & Below Ground

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!

Wayne Knight, Executive Director at HMI

Christine Martin, Owner at The Regen Ranch & The Regen Ranch Consulting

Andie Marsh, Owner at Rhizos LLC

More Info + Registration Link

April 19 - 21, 2024 | Fredericksburg, TX

What Good Shall I Do Conference

Andie will be leading a hands-on composting workshop!

More info coming soon.

More Info + Registration Link

Places we've been...

May 8, 2023 - Austin Organic Gardeners (AOG)

Creating Fungal Rich Compost

Join Soil Health Practitioner and Soil Food Web certified lab technician, Andie Marsh to learn about living soil. We will cover the following high-level principals of biocomplete and fungal-rich compost. 

  • What is a fungi:bacteria ratio and why does it matter to plant health?

  • Why are soils often deficient in fungi?

  • Why are many composts/amendments bacteria dominant

  • How can we improve the fungal biomass of composts/amendments we make for our gardens?

Webinar Replay

June 15, 2023 - Field Day - Pecan Orchard

Soil Health and Agri-System Resilience

This is an NRCS funded on-farm workshop hosted by Small Producers Initiative (SPI) at Swift River Pecans. Andie will be presenting on the basics of plant-microbe interactions and share insights from microscope assessments of the pecan orchard's soils and compost amendments (Johnson-Su Bioreactors).


There will be other presenters as well! Visit the link for more info.

Details & Registration

June 24, 2023 - Soil Microscope Workshop

Farmer Social & Soil Lab

This is a come-and-go event open to the public, hosted by Central Texas Young Farmers Coalition (CTYF). Bring a sample of your soil or compost and we will look at it together under the microscope! Sampling guides and location details can be found at the registration link.

July 31, 2023 - Webinar: Your Future in Soil Regeneration and Ecological Restoration

Hosted by Dr. Elaine's™ Soil Food Web School

Webinar Replay

August 6, 2023 - Southern Family Farmers and Food Systems Conference

Microscopic Insights in Soil Regeneration

Explore the hidden world beneath our feet and discover the microbiome’s role in restoring function and fertility to soils. In this session, you will learn practical strategies for stewarding beneficial microbial communities.

September 30, 2023 | Healthy Soils, Healthy Trees: Cultivating Biodiversity and Climate Resilience with Mushrooms

  • When: September 30th, 6 - 8pm

  • Where: Patagonia, 316 Congress Ave., Austin, TX 78701

  • Register Here


Join the Central Texas Mycological Society for a conversation about the role fungi can play to address land conservation and regeneration, and cultivate resilience to climate change and other challenges in Central Texas.


Andie Marsh, Owner of Rhizos LLC

Dr. Colin Averill, Founder and CEO of Funga,

Cristina Campbell, Biologist at City of Austin working on the City’s first ever mycorrhizal fungi study!

Austin Nerd Nite
September 28, 2023 8pm
Barrel O' Fun in Mueller Neighborhood

The Hidden World of Compost

Andie is a Soil Health Specialist, Certified Lab-Technician, and business owner of Rhizos LLC on a mission to help others restore life and functionality to their soil systems. It’s sexier than it sounds and she’s here to prove it!

November 9, 2023 | Coffee Chat with Soil Food Web School

Curious about a career in soil health? Maybe you want to level up your composting or restoration skills or learn how to use the microscope? Join this ask-me-anything style webinar!


I earned my lab-technician certification through Soil Food Web School. This is an opportunity to meet with students, mentors, and instructors of the program to learn what it's really like and how the course has helped people with their goals & interests.

Contact with any questions.


December 10, 2023 | Next Level Composting: How to Create a Johnson-Su Bioreactor

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.

 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.

Led by Andie Marsh, Rhizos LLC, and Eric Paulus, Ecology Action of Texas.


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