An analysis of the use of peat as a horticultural substrate in the UK and Ireland

Authors

DOI:

https://doi.org/10.29352/mill0230.46650

Keywords:

peat; horticulture; growing substrate; sustainability

Abstract

Introduction: The Horticulture industry has relied on the utilisation of peat as a fundamental component of substrates for growing crops for generations.  This paper analyses its utilisation within the United Kingdom and Ireland in the context of governmental proposals to cease peat extraction in these regions. 

Objective: Analyse the use of peat as a cultivation substrate within the United Kingdom and Ireland.

Development: Peat has been depended on by the Horticulture industry as an essential component of most professional growing substrates for many years. However, evidence of environmental damage caused by its extraction from natural habitats has led to increasing pressure on the United Kingdom and Irish governments to implement measures to phase out its utilisation.  To be able to respond to this, industry stakeholders have made significant efforts to develop substrates utilizing alternative components; however, the outcomes have only been partially successful.  Some Horticulture sub-sectors may require support to be able to make a transition over a longer period to avoid being negatively impacted if a total ban on the utilisation of peat is applied in the immediate term in these regions.    

Conclusion: Peat remains a crucial component of professional horticultural growing media, particularly in some specialized horticulture sub-sectors, and more efforts will be required to identify sustainable alternatives.

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References

Barrett, G. E., Alexander, P. D., Robinson, J. S., Bragg, N. C. (2016). Achieving environmentally sustainable growing media for soilless plant cultivation systems – a review. Scientia Horticulturae, 212, 220–234. https://doi.org/10.1016/j.scienta.2016.09.030

Bek, D., Lennartsson Turner, M., Lanari, N., Conroy, J., Evans, A. (2020). Transitioning towards peat-free horticulture in the UK: An assessment of policy, progress, opportunities and barriers. University of Coventry. https://shre.ink/3r0I

Callaghan, D., Walsh, L., Flanagan, D., Gaffney, M. (2021). Challenges in Peat supply for growing media and mushroom casing in Irish Horticulture. Current impact assessment and key challenges. Teagasc Horticulture Development Department.

Campbell, B. (2020). Peatland restoration is vital if Northern Ireland is serious about a green recovery. RSPB NI. https://shre.ink/3r0T

Carlile B. and Coules A. (2011). Towards sustainability in growing media. International Symposium on Growing Media, Composting and Substrate Analysis, 1013, 31-38. https://doi.org/10.17660/ActaHortic.2013.1013.42

Doar, N. (2022). Analysis of the failure of voluntary measures to halt peat use in UK horticulture between 1990 and 2020. The Wildlife Trusts. https://shre.ink/3r0M

Government of Ireland. (2023). 4th National Biodiversity Action Plan. https://shre.ink/3tOH

Gruda, N.S., Hirschler, O. and Stuart, J. (2024). Peat reduction in horticulture – an overview of Europe. Acta Hortic. 1391, 545-560. https://doi.org/10.17660/ActaHortic.2024.1391.75

HTA (2021). Growing media Monitor. Trends in the composition of UK growing media supplied 2011 to 2020. A report compiled for Growing media Association, DEFRA, AHDB, HTA. Available on the HTA website. https://shre.ink/3tJ0

Litterick, A., Bell, J., Sellars, A., Carfrae, J. (2019). Rapid Evidence Assessment of the Alternatives to Horticultural Peat in Scotland. Earthcare Technical Ltd. & SRUC. https://shre.ink/3r0q

Milivojević, J., Radivojević, D., Maksimović, V. and Dragišić Maksimović, J. (2025). What fertilizer management strategy is the most effective to optimize the leaf and fruit nutrient content of soilless-grown highbush blueberries? Acta Horticulturae 1444, 233-240. https://doi.org/10.17660/ActaHortic.2025.1444.31

Neumaier, D. and Meinken, E. (2015). Peat substitutes in growing media – options and limitations. Acta Horticulturae 1099, 159-166. https://doi.org/10.17660/ActaHortic.2015.1099.16.

O’Sullivan, K. (2021). GMI calls for 'fair and workable licensing system' to be introduced 'immediately'. Agriland. https://shre.ink/3t46

Pot, S., Tender, C.D., Ommeslag, S., Delcour, I., Ceusters, J., Vandecasteele, B., Debode, J., & Vancampenhout, K. (2022). Elucidating the microbiome of the sustainable peat replacers composts and nature management residues. Frontiers Microbiology, 13, 983855. https://doi.org/10.3389/fmicb.2022.983855

Royal Horticultural Society (2026). RHS Peat Policy. https://shre.ink/3t4R

Streminska, M., Eveleens, B., Blok, C., Verkerke, W., Boedijn, A. (2021). Recirculation, circular fertilizers and resilience: The potential of growing media systems for circular production. II International Symposium on Growing Media, Soilless Cultivation, and Compost Utilization in Horticulture, 1317, 65-72. https://doi.org/10.17660/ActaHortic.2021.1317.22

Vandecasteele, B., Hofkens, M., De Zaeytijd, J., Visser, R., Melis, P. (2023). Towards environmentally sustainable growing media for strawberry cultivation: Effect of biochar and fertigation on circular use of nutrients. Agricultural Water Management, 284, 108361. https://doi.org/10.1016/j.agwat.2023.108361

Woznicki, T., Kusnierek, K., Vandecasteele, B., Sønsteby, A. (2024). Reuse of coir, peat, and wood fibre in strawberry production. Frontiers in Plant Science, 14, 1307240. https://doi.org/10.3389/fpls.2023.1307240

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Published

2026-06-25

How to Cite

Cunha, F. (2026). An analysis of the use of peat as a horticultural substrate in the UK and Ireland. Millenium - Journal of Education, Technologies, and Health, 2(30), e46650. https://doi.org/10.29352/mill0230.46650

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Section

Agriculture, Food and Veterinary Sciences