About Us

Pro-Grow are part of Veolia, the biggest compost manufacturer in the UK, where we create 400,000 cubic metres of compost every year at our 11 composting sites. We also operate in 7 other countries and have access to a network of experts across the world. This means we can create the finest ingredients to use in our Pro-Grow products.

At Pro-Grow, we use composted garden cuttings as the base ingredient for our products. This means that all the goodness in the plants is captured in our products and returned to the soil where it belongs. Collecting garden cuttings separately and composting them means they do not go to a landfill where they would decompose anaerobically and produce methane which is 21 times more potent as a greenhouse gas than Carbon Dioxide (CO2).

We are proud to say that we have never used peat in our products, and never will. Peat is a non-renewable resource, just like oil and coal, and its removal from peat-bogs results in the release of greenhouse gases and destruction of an important habitat for rare wildlife. Our customers can enjoy their purchase in the knowledge that they are helping to fight climate change, protect biodiversity, combat depletion of natural resources, and support the circular economy!

Pro-Grow compost naturally contains high levels of nutrients, reducing the amount of artificial fertilisers that need to be added to get high performance.

Pro-Grow compost also contains high levels of organic matter which is a critical component of a healthy soil. It improves soil structure, water holding capacity, nutrient availability, healthy biological activity and water and air infiltration.

Pro-Grow is analysed regularly by independent laboratories. You can get a full copy of the most recent analysis by emailing us

The benefits of using Pro-Grow

Pro-Grow produces a much healthier soil, bringing about healthier vegetation and higher growth rates.

Pro-Grow has a range of beneficial effects on the soil:

  • Improved soil structure
  • Improved root environment for plants
  • Improved nutrient uptake and decreased soil borne diseases
  • Increased moisture infiltration and drainage in heavy soils
  • Improved moisture holding capacity in lighter, sandy soils
  • Increased neutralising value helping to keep soil pH stable
  • Improved resistance to soil compaction and erosion
  • Reduced need for fertiliser as it provides a variety of nutrients

The superior nature of Pro-Grow compost has resulted in its use in prestigious projects such as landscaping at Parliament Square in the City of Westminster, Canary Wharf landscaping in London, the Sir Harold Hillier Gardens and Arboretum near Romsey in Hampshire and Castle Park in Colchester.

The Pro-Grow Journey

From waste to rich organic compost or the Pro-Grow journey...

Ever wondered how we produce compost from garden waste?

Pro-Grow is made using a completely natural process.

We only add water and air in order to create the perfect conditions for the micro-organisms which are naturally present in the material to break down the organic matter and create a really high quality compost product.

  • Garden waste is collected by our collection crews
  • Then it is delivered to the composting facilities, where its origin is recorded
  • Any visible contaminants such as plastic, stones and metals are removed
  • The cleaned material is blended with other loads to ensure consistency
  • It is then shredded to reduce the size of larger fractions and ensure good mixing of green and woody materials The shredded material is formed into windrows 100 metres long and up to 3.5 metres high
  • The physical structure and constituent materials of the windrow are crucial in ensuring the conditions for composting are optimised
  • After formation of the windrow and optimisation of conditions the internal temperature of the window rises to at least 70 degrees centigrade and is maintained at that level for a minimum of 48 hours
  • This destroys any viable seeds or plant pathogens within the green waste
  • The windrows are then aerated, turned and mixed every 10-14 days for the next 4 months
  • When fully composted the material is graded according to customer requirements


After it all, we guarantee high quality organic compost that has been continually controlled to ensure we offer the best product to our customers.