Until recently, composts were based on peat, a high-nutrient, organic matter found in peatland bogs. But, the use of peat in gardening led to a dramatic decline of the natural wildlife habitats found in peat bogs, and ethical concerns have made it less desirable. As a result, the UK government have announced the ban of peat composts by 2024.
You can now buy peat-free compost mixes that are based on compost bark, coir or green manure and waste materials from parks.
The industry has been getting ahead with peat-free composts, from seed and cutting composts to specialist types for fruit and veg, including growbags.
Check the label to see whether the compost has peat in it.