Is Peat Really Unsustainable? New Research Challenges the Narrative
Peat has become one of the most debated growing media in horticulture, with many claiming it should be replaced by more sustainable alternatives. But is the story really that simple?
A new review by Dr. James Altland (USDA Agricultural Research Service) and Dr. Bruce Bugbee (Utah State University) takes a closer look at the science behind peat sustainability—and the findings may surprise you.
The research highlights important differences between European and Canadian peatlands, examines how modern restoration practices can return harvested peatlands to carbon sinks, and compares the environmental impacts of peat with popular alternatives like coir, wood fiber, perlite, and rock wool.
The authors argue that sustainability is far more nuanced than many headlines suggest, and that current evidence doesn't always support the assumption that alternative substrates are inherently better for the environment.
If you're involved in horticulture, greenhouse production, or growing media research, this article offers a science-based perspective on one of the industry's most important conversations.