MicraCulture
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About Us

Sarah setting up some product tests
MicraCulture is a micra-business, owned and operated by Dr. Sarah Pellkofer in Seattle, Washington since 2015! 

Sarah conceived the idea for MicraCulture during her PhD work, studying how the living things in soil affect plants and environment. She found, after running years of experiments, that by adding specific species of fungi and bacteria to the soil (ones that are present in healthy, natural soil, but are often absent in manicured gardens), plants grew better, used water more efficiently, they were protected from harmful pathogens and disease, and even the amount of soil pollutants was reduced! Sarah knew that she had to start a business to give the benefits of soil microbes to everyday gardeners and help bring the soil back to life, one yard at a time.

She created the proprietary soil additive, Plant Probiotics, that is packed full of natural and native fungi and bacteria, plus some key soil nutrients. Sarah and her team of scientists handcraft all orders in Seattle and constantly test Plant Probiotics to ensure only the highest quality soil microbes make it into your garden. 
​Sarah's latest publication

Meet Our Scientific Advisory Board

MicraCulture is backed by a brilliant team of scientists from around the world. Members of our Scientific Advisory Board are experts in the field and have ongoing research in soil/plant interactions to ensure that our microbial mix is as scientifically advanced as possible! 
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Prof. Dr. Bernhard Schmid
Dean of the Faculty of Science, Professor of Environmental Science at the University of Zurich, Co-founder, Dept of Evolutionary Biology and Environmental Studies,
​Plant Science Jedi Master
Read more...
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Dr. Dan Flynn
Research Associate, The Arnold Arboretum at Harvard University and Ecological Climate Change Wizard
Read more
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Prof. Dr. Marcel van der Heijden
Leader of Institute for Sustainability Sciences and Professor of Soil Science, Swiss Governmental Agricultural Research Department, Agroscope,
​Soil Science Authority
Read more...
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Dr. Cameron Wagg
Post-doctoral Researcher, Dept of Evolutionary Biology & Environmental Studies, University of Zurich,
​Plant-Soil Interactions Guru
Read more...
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Dr. Yann Hautier
Assistant professor in Ecology and Biodiversity, Utrecht University,
​Ecological Theory Maestro​
Read more...

Getting our science on!


Thank you for visiting us at MicraCulture! We are so excited that you are here. It is the first step toward actively improving the health of soil in your garden...and by doing so, contributing to the quest to bring soil around the world back to life, restoring global soil biodiversity! ​Feel free to contact us anytime with your questions about our product or soil microbes and we would love to hear about your soil and garden success stories!

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PO Box 31393
Seattle, WA 98103

(202)838-SOIL
[email protected]
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MicraCulture LLC is a Certified Green Business
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PO Box 31393, Seattle, WA 98103
(202) 838-SOIL

  • Plant Probiotics
  • How It Works
    • Our Microbes
  • Buy Some
    • Buy Plant Probiotics
  • About Us
  • Reviews
  • News