"Peat moss" refers to a type of moss that is formed from decomposed plants. It is often used by gardeners to improve the soil because it helps retain moisture and provides nutrients to plants. Full definition
Or if peat pots / peat pellets, or potting soils with a lot of peat moss in it, were used when planting pepper seeds, that can severely inhibit germination. (ecoseeds.com)
The small planting pellets are about the diameter of a silver dollar, and are made of compressed peat moss in netting. (pepperjoe.com)
Development of a 2 - stage anaerobic digestion process for potato - processing waste to produce a substitute for peat moss, an imported non-renewable matrix for potting and garden soils. (usda.gov)