Sphagnum peat moss, screened 18 ways

What peat moss does in a mix

Peat moss, also called Sphagnum moss or Sphagnum peat moss, grows in acidic, water-logged environments such as bogs and swamps. It forms a thick layer of organic material that accumulates and partly decomposes over thousands of years to become peat. In horticulture it is used as a soil amendment or as the main component of a growing mix, because it holds water, improves soil structure and gives a stable, predictable root zone.

• Moisture retention. Highly absorbent and able to hold a large amount of water, which keeps the root zone from drying out between irrigations.
• Aeration. Porous despite that water-holding, so air still circulates around the roots. Good aeration is essential for healthy root growth.
• Nutrient content. Small amounts of nitrogen, phosphorus and potassium plus trace elements such as iron, manganese and copper. The low, stable baseline is the advantage: you set the nutrient level with fertiliser instead of working around ours.
• Root growth. A spongy texture that encourages rooting, and a high water-holding capacity that keeps roots hydrated.
• Clean. Bog peat is naturally free of weed seed and pathogens, so it is far less likely to introduce disease or invasive species than many alternatives.
• Low pH. Naturally acidic, which suits blueberries, rhododendrons, heather and other acid-loving crops with no amendment at all.

We work with both milled and block-cut peat raw materials, which is what allows structures from extra-fine propagation grades through to coarse professional growing media.

Fine Latvian white peat, screened 0-10 mm.