Feeding Lawns

Like all liking organisms lawns require food, feeding should commence March to April when the grass starts to grow, at this time of year your lawn will require a nitrogen rich fertiliser.

Approximately 6-8 weeks later a second feed should be applied to maintain the vigor of the grass. Subsequent fertilisation will depend on your soil type and seasonal conditions. The final fertilisation will be required during autumn, this is important fertilisation as it strengthens and prepares the lawn for the rigors of winter.

The main elements of Lawn fertilisers are nitrogen (N), phosphorus (P) and potassium (K).

Nitrogen is required in larger quantities than phosphorus and potassium as it is an essential component of chlorophyll, amino acids, proteins, nucleic acids, enzymes and other plant substances. Grass normally consists of 3% to 5% nitrogen this being required to ensure healthy plant growth.

Phosphorous is use to hold and transfer energy within the plant for metabolic processes. Highly mobile within the plant phosphorous is conserved and used repeatedly to assist cell production.

Potassium is second only to nitrogen in the amount required to sustain grass growth, it plays an important part in the synthesis of numerous plant compounds and in the regulation of many physiological processes.

Secondary elements such as sulphur, calcium and magnesium are also present in some fertilisers.

Ensuring the correct balance of annual fertilisation program is a skilled job we would be happy to recommend an annual program for your lawn if you require.

Need Help Fertilising Your Lawm

If you would like further advice on lawn fertilisation, just click the orange “Help Please” button below and we’ll contact you.

The RHS is the world's leading gardening charity.

Lawnscience supports the RHS by annual charitable donations

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