There are clear environmental reasons why we should all stop using even small amounts of peat: peat bogs are the world's largest carbon store, trapping far more of the carbon dioxide emissions that contribute to global warming than forests, plus digging up peat actually contributes to carbon emissions. Unfortunately, peat-based composts have been widely used in horticulture. Many garden composts still contain some peat, and garden centres still sell plants growing in pots of peat-based compost.
Issues with peat-free composts, such as expense, availability and performance have hindered its take up in the past but thankfully, compost manufacturers have responded to these concerns with research and investment and a broad range of high quality, peat-free composts are now widely available.
Peat free composts contain a variety of organic, sustainable ingredients as alternatives to peat. Proportions of these core ingredients are mixed with inorganic materials such as perlite, grit and sand as well as fertiliser. Specialist composts use the above as a base and other ingredients are added depending on what they’re for. These include:
- Coir, or coconut fibre. This by-product has good water holding ability and a porous structure, but doesn’t retain nutrients well.
- Woody materials, such as wood fibre or composted bark. Easily tailored to suit different plants, these provide an open structure and have good drainage
- Green waste. Collected and composted by local authorities, this is high in nutrients and must abide by industry standards to ensure consistency
- Sheep wool. A waste product from farming, it's high in nitrogen with good water retention.
- Bracken. Sustainably harvested and composted this invasive plant is high in potash and a great soil conditioner
Peat-free ranges have expanded hugely and as well as multipurpose, many now include tailored composts for specific uses, such as seed sowing, container growing and grow bags, as well as for cultivating particular plants, from veg and citrus to ericaceous and bulbs. Take care to choose the right compost for the job and always check the label for instructions about the suitability of the compost for a particular purpose; peat-free soil conditioners for example are for working into the soil rather than potting or seed sowing.
Buyer Beware
If a bag of compost isn’t clearly labelled with the words peat-free then it almost certainly isn’t, and words like ‘organic’, ‘sustainable’ and ‘environmentally friendly’ on bags don’t mean peat-free either. The percentage of peat in peat-reduced composts can still be quite high and with so many peat-free options available, opt for one of these instead.Jump to:
The best peat free composts
Wonderfuel
Price: from £12.99 for 25L
Available from Quality Garden Supplies
Wonderfuel's peat free compost has been developed over eight years of testing and research. It's created with a blend of by-products and waste materials that provide a nutrient-rich, high-performance alternative to traditional compost. There are two versions available, Stage 1 which is perfect for seeds, cuttings, young plants and house plants, and Stage 2 which is ideal for pots, baskets, containers and garden plants.
RocketGro
Price: from £18.99 for 40L
Available from Dobies
Created on a Somerset farm, all these peat free compost are part made with the by-product of renewable energy production and completely free from animal products. The range includes compost for seed and cutting, multi-purpose, fruit and veg, containers and baskets as well as ericaceous plants, roses and beds and borders.
Heart of Eden all purpose natural compost
Price: £12.99 for 50L
Available from Ample and Amazon
Enriched with naturally occurring nutrients and fertilisers to support plants at all stages of their growth, this peat free compost is suitable for both indoor and outdoor plants.
Moorland Gold
Price: from £24.99 for 40L
Available from Dobies and Thompson & Morgan
Moorland Gold is free from dug peat but has naturally filtrated peat particles that have been collected from reservoirs and which would have otherwise ended up in landfill. The particles have naturally released their CO2 before being washed down the river and all their composts are certified organic and Soil Association approved. They include seed and cutting, potting and container, and multipurpose composts.
For Peat's Sake!
Price: £5.00 for 3L
Available from For Peat's Sake! and Crocus
Compact and easy to store, check out these expanding coir blocks from For Peat’s Sake! Once you add water, a 140g block of this dehydrated coconut coir will expand to 3L of compost. A great option for eco-warriors, this sustainably sourced coir compost is versatile too, and is ideal for sowing seeds, edible crops as well as houseplants and cacti.
Melcourt (SylvaGrow)
Price: £11.99 for 40L Multipurpose compost
Available from Crocus and Thompson & Morgan.
The SylvaGrow peat-free range includes multipurpose, organic, ericaceous and tub and basket composts as well as grow bags. Most contain a mix of fine bark, wood fibre and coir plus a balanced mix of nutrients that will last four-six weeks. The grow bag and organic compost are RHS and Soil Association endorsed. Composts are available in 15L and 50L sizes
New Horizon
Price: £9.99 for 50L All Plant compost
Available from B&Q, Marshalls and Amazon.
Westland’s peat free range contains their patented Bio3, a peat free technology that includes West+ wood fibre and coir. Their All Plant compost comes in 10, 20, 40 and 50L bags, an All Vegetable compost is available in 50L bags and a medium size Tomato planter is big enough for two plants.
Fertile Fibre
Price: £25.00 for 60L Multipurpose compost
Available from Fertile Fibre and Amazon.
These coir based multipurpose, seed and potting composts are available in organic, vegan and biodynamic ranges. They contain no green waste and are fully accredited by the Soil Association. Bag sizes range from 10 - 60 litres but you can also buy in bulk in loads of 1000 – 2000 litres. They’re not available in garden centres but they will deliver – just one bag or an entire load.
Dalefoot
Price: £11.99 for 30L
Available from Crocus and Sarah Raven
A nutrient rich blend of sheep’s wool, comfrey and bracken this Wool Compost range is Soil Association approved. Naturally water retentive with enough nutrients to last a season the extensive range includes Potting, Seed, Bulb, Vegetable and Salad and Ericaceous composts as well as a specialist Tomato compost. Dalefoot also restore peat bogs, including some previously owned by peat compost companies. Sizes range from 10 to 30 litre bags
Miracle-Gro
Price: £10.99 for 40L All Purpose compost
A wide range of wood fibre and coir-based composts, which includes All Purpose, Bulb, Houseplant, Ericaceous, Pots and Baskets and Fruit and Vegetable composts. Each contains their patented Aquacoir technology to help plants stay hydrated and enough nutrients to last three months. Composts are available in a range of sizes including 10, 20 and 40 litre bags.
Verve
Price: £7.00 for 50L Multipurpose compost
Available from B&Q
With an extensive range including multipurpose, seed and cutting, bulb, houseplant, cacti and succulent, citrus and container and basket compost, B & Q’s peat-free compost is based on a mix of coir, composted bark and green waste. Depending on the compost it’s available in 10L – 50L bags and is cheaper than their peat-based compost.
Harmony Gardens
Price: £12.99 for 50 litres multi-purpose compost
Harmony Gardens composts are the first to claim carbon-neutral status. Coir-based with a balanced mineral fertiliser, the range comes in recyclable bags and includes a multipurpose in 50-litre size, as well as a handy growing bag for vegetables, fruit and salad.
Carbon Gold
Price: from £12.99 for mulit purpose
Available from Marshalls Garden
Soil Association and FSC approved, Carbon Gold Biochar composts are peat- and synthetic chemical-free. A coir-based mix, including a high carbon charcoal that locks in carbon and has great water and nutrient retention, the range comprises Biochar All Purpose and Biochar Seed in 10-, 20- and 40-litre bags.
For more inspiration browse peat free composts at Suttons, Thompson and Morgan and Primrose.
How to grow with peat free compost
Peat-free composts can require slightly different handling to traditional composts:
Watering. Peat-free composts often differ in colour to peat-based compost and recognising whether they’re dry or wet can take some getting used to. Some can look well-watered, others dry, when the opposite is true just below the surface. Check carefully with a finger or by picking up pots to see if they feel heavy or light, and therefore need watering. Some also dry put quickly while others hold on to water well so if you’re growing plants that require good drainage add grit or sand to the mix.
Feeding. Most peat-free composts have enough nutrients in them to last just three or four weeks so be prepared to give potted plants a liquid feed after this or add a slow release fertiliser at planting to help sustain your plants throughout the season. Also avoid compost that's been sitting around the garden centre (look for faded or saturated bags) as fresher compost will perform bettr.
Storing. Use peat free compost as soon as you can and close any you have left and store in a cool, dry place.
Choosing the right one. Peat free composts vary greatly in texture and coarser, cheaper multipurpose mixes with a higher wood content are best avoided for seed sowing. It's worth investing in a higher quality compost and ensure successful germination.
How to make your own peat-free compost
It's also easy to make your own peat-free potting mix, using a mix of different ingredients, including well-rotted leaf mould, garden compost, vermiculite and garden soil. Monty Don recommends a mix of three parts coir, one part sieved garden compost, one part sieved loam and one part sharp sand, perlite or horticultural grit. Find out more about the some of the ingredients used to make peat-free composts, below:
Leaf mould - An excellent soil conditioner and easy to make yourself. If you have lots of leaves, try making a leaf mould bin to process large amounts, or on a smaller scale you can use plastic sacks.
Home-made garden compost - Every garden should be able to produce this and the key is balancing green, leafy nitrogen-rich material with carbon-rich brown material, like woody stems and cardboard. Take a look at our full guide to making compost and if you're looking for a compost bin see our review guide to the best compost bins.
Loam - Essentially garden soil, you can buy good quality loam (or topsoil) from the garden centre. Alternatively you can use old sections of turf, which you stack up, grass side down, and cover with tarpaulin. After around a year it will have broken down into good, loamy soil, which you can use in potting mixes.
Coir - A waste product from coconut plantations in tropical countries like India and Sri Lanka, you'll often come across it in compressed blocks that expand when watered. It's absorbent and an excellent open growing medium for sowing seeds and growing plants. Buy coir blocks from Amazon, Suttons, Thompson and Morgan and Fertile Fibre.
This Product Guide was last updated in May 2025. We apologise if anything has changed in price or availability.