Peat moss isn't actively "grown" in the traditional agricultural sense. Instead, it forms naturally in peat bogs over long periods, primarily from the Sphagnum moss genus. Here's how the process works:
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Sphagnum Moss Growth: Sphagnum moss thrives in acidic, nutrient-poor, and waterlogged environments, typically found in peat bogs. It grows at a rate of roughly 0.75 to 4.75 inches (2 to 12 cm) annually.
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Decomposition and Accumulation: The lower parts of the Sphagnum moss plant die and, due to the anaerobic (oxygen-lacking) and acidic conditions of the bog, decompose very slowly. This slow decomposition is key.
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Peat Formation: This partially decomposed organic matter accumulates at the bottom of the bog, gradually forming peat. The annual accumulation is relatively slow, about 0.5 to 1.0 mm per year.
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Peat Depth: Over centuries and millennia, these deposits build up, resulting in peat layers that can range from a few inches to as much as 20 feet (5 cm to 6 meters) deep.
In short, peat moss is not cultivated; it is harvested from naturally occurring peat bogs where Sphagnum moss has decomposed over extended periods. Sustainable harvesting practices are vital to preserve these important ecosystems.
