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TOPGRASS - Overseeding Mixtures

Overseeding using the correct mixtures and machinery designed for the job is now accepted as good practice to both maintain the physical and nutritional quality of medium and long term swards. 

Soil seeding - depth and seed to soil contact are critical

When the sward becomes open allowing weeds and unsown species to invade, overseeding will quickly check this and maintain the productivity by increasing both yield and quality.

The loss of 1 tonne DM/ha @ 11MJ/ kg DM equates to 11000 MJ/ha = more than 2000 litres milk/ha for the dairy farmer. 

Overseeding a sward with the correct ForFarmers Leybooster overseeding mixture will help maintain production beyond its expected life.

Weed grass ingress

Overseeding reduces weed grass ingress, which increases over time.

Overseeding reduces weed grass ingress


All TOPGRASS overseeding mixtures contain ProNitro as standard.

This unique, precision targeted fertiliser coating feeds only the sown seed and not the surrounding sward, resulting in fewer weeds and weed grasses. It also improves establishment vigour at the most crucial stage in the overseeding process.

  • Enhanced early growth and improved tolerance to stress
  • Fertiliser application exactly in the root zone = Better utilisation of nutrients and reduced loss to environment
  • Bigger and heavier seed in better contact with soil
  • Feeds only the seed not the weed or surrounding grass
  • Better root and shoot extension
  • Average of 30% more viable plants
  • No application costs


Contains: ProNitro

  • Sowing rate 10/acre (25kg/ha) 
  • Heading date 20th - 22nd May


Contains: ProNitro

Available without clover.

  • Sowing rate 10/acre (25kg/ha) 
  • Heading date 20th - 3rd June

For more information

For more information on TOPGRASS or if you would like to speak to a specialist about how to maximise your grassland please contact your local Account Manager or send us online enquiry here.

Browse our short term, medium term, long termgrazing and organic mixtures.