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Minimise Nutrient Runoff

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Nurture your soil

Apply the Right Amount of Soil Conditioner

The recommended application rates are provided below for different garden areas:

  • New garden beds (inc. productive beds) – compost, clays and mineral soil amendments should be applied as per the manufacturer’s application rate which is typically a single application mixed thoroughly into the top 25cm of existing soil. Soil wetting agents should be evenly spread on the soil’s surface.
  • Existing garden beds -whether soil conditioner/amendments are required will depend upon the soil’s existing condition. If the soil is poor and plants look hungry, apply soil conditioners as per the recommended application rates and method on the product label.
  • Existing productive garden beds – reapply compost each time you replant and apply a soil wetting agent if the soil becomes hydrophobic.
  • New lawns – soil conditioners should be mixed into the top 25cm of existing soil to create the lawn’s sub base. This is then lightly compacted and leveled for roll-on or lawn seed to be applied.



minimise-nutrient-runoff3Mulch dramatically improves moisture retention by reducing evaporation from the surface of the soil. It also feeds plants essential nutrients as it breaks down, helps to suppress weeds and insulates plant roots from extreme temperature fluctuations.

It is important to maintain an even 5-10cm deep layer of organic, course mulch across all your garden beds.


Ensure a face mask is worn during the application of any soil amendment to prevent inhalation of material or associated micro-organisms.
When sourcing organic soil conditioners and mulches, check that they are sourced from an accredited composting facility or if bagged, they should have these labels on the bag. Mulches should be weed and pathogen free.