Finn Hydroseeder on tracked vehicle

What is hydroseeding?

Hydroseeding is a process where you apply a mixture of seeds, fertiliser and other additives to ground which requires vegetating using liquid mulches. For decades it has been used to establish plants and trees in large or inaccessible areas.

Hydroseeding is often more effective than conventional seeding, for a variety of reasons. Seed and other components are mixed in a liquid base, meaning that the seeds are given a head start whilst also being easy to apply to many types of soil, including on steep slopes.

TerrAffix will assess your site and then create a unique mix which will deal with your soils specific requirements, this increases better germination.

TerrAffix then apply your unique mulch mix using our Finn hydroseeder machines.

TerrAffix have some of the largest hydroseeders available, able to tackle any job.

Hydroseeding, the advantages:

  • Hydroseeding has significant advantages over more traditional methods of revegetating land, this includes speed, access to difficult ground and success rates.
  • If the land is steep hydroseeding will still allow us to introduce the essential elements in our mix that will speed up the vegetation.
  • Hydroseeding is cost effective.
  • A microclimate is created for the seed once applied, protecting it from the elements, achieving quicker germination and enhanced growth.
  • We can establish a wide range of native wildflower seed or grass mixes to suit the site.
  • This is a low carbon solution, with the addition of biochar in our specialist mixes carbon is locked in.
  • Hydroseeding can achieve a uniform layer of seed mixture across a site, increasing coverage.
  • The tackifiers and hydroseeding slurry have all been designed to lock seeds in contact with the soil, reducing the possibility of being washed away.
  • Soil can quickly be stabilised.
  • Our products are researched and designed extensively to be organic and biodegradable.
  • This is a safe, low risk way to establish vegetation.

Unique Solution

TerrAffix has been developing solutions to erosion control and revegetation particularly for poor and polluted soils. The unique mix of additives helps plants access nutrients, allowing for rapid vegetation with very high success rates. Working with a variety of research institutions has ensured our solutions are tested rigorously whilst being the lead in our industry.


TerrAffix have researched a variety of applications for hydroseeding, including Mines, Rail, Roads, Verges, SuDS, embankments and more.