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Minimise Nutrient Runoff

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Responsible fertiliser use

Use the Right Amount of Fertiliser

With so many products available on the market it is important to follow each product’s recommended application rates to minimise the risk of over fertilising. Home made fertilisers should also be used carefully. Consider the following as a guide:

  • Worm residue – Steep a cup of worm castings in a bucket of water for a day then drain off the liquid to use as a liquid tonic to plants
  • Worm casting – Incorporate a handful into the planting holes of young plants or seedlings
  • Aged animal manure – can be distributed on top of garden beds or dug through the soil. Dependant on the type of manure, up to 10L or one bucketful per m2 should suffice for hungry plants like veggies and fruit trees.
It is important to read the products recommended location and where they best apply (i.e. for citrus or lawn areas) to ensure they are suitable.


When to Fertilise
  • Lawn Areas – If fertiliser is required, apply in spring and early autumn. Avoid fertilising in winter as lawns become almost dormant and there is a high risk of fertiliser washing into stormwater drains or leaching into groundwater
  • Ornamental Exotic Garden Beds – Apply fertiliser bi-annually in spring and autumn
  • Productive Garden Beds – Apply fertiliser quarterly when replanting
  • Native Garden Beds – Apply fertiliser annually in spring for new plantings. Established plants don’t need it often