Our Science
We’re a team of plant people united by the crazy idea that good soil can change the world.
It’s why we’ve set out to create the highest quality products with the lowest possible environmental footprint.
To pull this off, we’ve brought together a world-renowned group of plant and soil scientists led by our Lead Soil Researcher, Jules.
Justin "Jules" Giuliano is an organic farmer and educator with a background in vermicompost and natural farming. Prior to joining Rosy, Jules managed an urban farm in Atlanta, studied regenerative agriculture at the Rodale Institute and won a Cannabis Cup for his cannabis cultivation.
Our Science Advisory Board
Chris Cerveny
Ph.D. in Horticulture, Floriculture, and Plant Physiology from Cornell University
Kelpie Wilson
Biochar Researcher, Inventor, and Founding Board Member of the US Biochar Initiative
Mauricio Avila-Segura
Ph.D. in Soil Chemistry from the University of Wisconsin-Madison
Garver Akers
Certified Ecological Horticulturist and Agroecologist
Andrew McGowan
Ph.D. in Agronomy from Kansas State University
Our Ingredients
Biochar
is a horticultural charcoal that holds onto oxygen and nutrients while also storing microbes and carbon in the soil
Mycorrhizae
are beneficial microorganisms that form a symbiotic relationship with plant roots, allowing the plants to absorb more nutrients
Pine Bark Fines
are a byproduct of the mulch industry which enhance soil structure and improve aeration
Compost
helps reduce waste in landfills by turning green waste and wood waste into a useful source of nutrients for plants
Pumice
is a naturally occurring volcanic rock that is lightweight and porous, helping to improve soil drainage and aeration.
Sand
has large grain size, coarse texture, and high silica content to support soil drainage.
Where's the peat?
Peat moss has been a common ingredient in commercial potting mixes since the 1960s. However, it's obtained by extracting peat bogs, which are vital ecosystems that store carbon. At Rosy, we believe there's a better way. So, we've developed our blends with alternatives that are effective and sustainable.