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
Garver Akers
Certified Ecological Horticulturist and Agroecologist
Andrew McGowan
Ph.D. in Agronomy from Kansas State University
Niamke Shropshire-Boykin
Regenerative Agriculture Professor + Researcher
Jane Halloran
Biochar Researcher, M.S. in Biological Systems Engineering from University of Wisconsin-Madison
Arianna Bozzolo
Research Director, Ph.D. in Viticulture, Enology, and Marketing from The University of Padova.
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?
Most commercial potting mixes use peat moss as a common ingredient. Peat moss consists of highly organic “peat” soil dominated by a type of moss called Sphagnum. Peat forms slowly over thousands of years in ecosystems called peatlands. Harvesting peat moss results in a substantial loss of carbon stored in peatlands and destruction of habitat for birds, amphibians, and plants.
At Rosy, we believe there's a better way. So, we've developed our soil blends with alternatives that are highly effective for growing plants, don’t increase carbon emissions, and are environmentally sustainable.