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Are lawnmower grass clippings toxic to rabbits?

Toxic for rabbits

Do not feed lawnmower clippings to rabbits. They ferment quickly and can make rabbits ill. Source: Royal Veterinary College, PDSA, RSPCA

Conditions

  • If you cut grass for your rabbits yourself, PDSA advises scissors, a small amount each day, fed straight away. Source: PDSA

Why it is a problem

  • A lawnmower heats and damages grass, so it goes off quickly and bacteria can grow on it. Source: PDSA
  • The Royal Veterinary College adds that clippings may carry petrol residues. Source: Royal Veterinary College

Sources

  1. Royal Veterinary College: Rabbit care information pack (RVC Exotics Service) (opens in a new tab)

    “Lawnmower clippings should never be used as they ferment rapidly and may have petrol residues on them”

    Read on 10 October 2026

  2. PDSA: Feeding your rabbits (opens in a new tab)

    “never feed mown grass, as this can make them poorly”

    Read on 10 October 2026

  3. PDSA: Feeding your rabbits (opens in a new tab)

    “Lawn mowers heat up and damage grass, which means it goes off quickly and bacteria can grow on it.”

    Read on 10 October 2026

  4. PDSA: Feeding your rabbits (opens in a new tab)

    “use scissors to clip a small amount each day and feed it to your rabbits straight away”

    Read on 10 October 2026

  5. RSPCA: What do rabbits eat? Rabbit diet advice (opens in a new tab)

    “Don't feed them lawnmower clippings, as these can make them ill”

    Read on 10 October 2026

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