Levington John Innes No.2 Compost for potting on small plants into larger containers and re-potting established houseplants and vegetables. Levington John Innes No.2 compost has a specially balanced nutrient mix ideally matched to the needs of plants being re-potted into medium sized containers.What is John Innes compost?John Innes compost is predominantly peat based but also includes sterilised loam and has a higher proportion of heavy particles like grit and sand than other composts and as a result is much heavier. A numbering system is used to indicate the nutrient levels within the compost.