Potting soil is a collective term for different kinds of soil with each their own composition and specific structure, especially for plants in pots and flower containers. Potting soil is lightweight, contrary to for instance the heavier dark garden soil.
One of the biggest components of potting soil is peat. Peat is an age-old, natural raw material that has its origins in plant remains. An important property of peat is the absorbing capacity. It doesn’t only quickly absorb moisture, but it also retains it long. And then there are all growth stimulating advantages as well. Another important major component of potting soil can also be coir. Dependent on the use, peat is mixed with products like bark, coir, compost, sand, fertilizers, and lime. In this way structure, composition (like an appropriate acidity or pH), and nutrients (the appropriate quantity and composition of the fertilizer or EC) together cause that the plant can root in its ideal soil. A healthy root system creates better growth and allows the plant to stand sturdy.