Anyone who has gardened over the last thirty years has gotten used to the ubiquity of standardized peat potting mixes. Peat became dominant for both commercial and home gardeners for several reasons, namely, peat is cheap, easily handled and readily available. However, peat potting soils also have many disadvantages. For example, peat is not great at holding water, the fibres break down quickly and of course, there is considerable discussion about the non-sustainable nature of disturbing (large release of CO2) and harvesting peat (takes 1,000,000 years to replenish). Furthermore, most peat-based potting mixes are generic and do not cater to specific plants' needs.