Peat: Partially decomposed organic matter formed from sphagnum moss and other plant materials in waterlogged, acidic conditions.
Peat moss is a common ingredient in potting mixes and seed-starting mediums. It’s like a sponge, holding moisture and providing aeration for plant roots. It’s also naturally acidic, which makes it suitable for acid-loving plants like blueberries and rhododendrons. However, there are growing concerns about the environmental impact of peat harvesting, as it’s a non-renewable resource, and its extraction can damage peat bog ecosystems.
Many gardeners are now exploring alternative materials, such as coconut coir and composted bark, to reduce their reliance on peat. If you choose to use peat, look for sustainably harvested options or consider peat-reduced mixes.
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