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Is rhubarb toxic to rabbits?

Toxic for rabbits

Rhubarb can poison rabbits. Merck lists rhubarb leaves as do not feed, and the RSPCA counts rhubarb among the most common serious rabbit poisons. Source: Merck Veterinary Manual, RSPCA

Risks and signs

  • Signs the RSPCA lists include a sore mouth, loss of appetite, lethargy, diarrhoea, a tender belly and severe dehydration. Source: RSPCA

Why it is a problem

  • The RSPCA says all parts of the plant can be irritant and are potentially poisonous when eaten raw. Source: RSPCA

Sources

  1. Merck Veterinary Manual: Table: Plants and Foods That Are Harmful to Rabbits (opens in a new tab)

    “Plants and Foods That Are Harmful to Rabbits … Toxic-Do Not Feed … Rhubarb (leaves)”

    Read on 10 October 2026

  2. RSPCA: Rabbit poisoning (opens in a new tab)

    “Some of the most common, potentially severe rabbit poisons are: Rodent poisons (called 'rodenticides') Ivy Rhubarb Foxglove”

    Read on 10 October 2026

  3. RSPCA: Common rabbit poisons and poisoning symptoms (opens in a new tab)

    “All parts of the plant can be irritant and are potentially poisonous when animals eat them raw.”

    Read on 10 October 2026

  4. RSPCA: Common rabbit poisons and poisoning symptoms (opens in a new tab)

    “Common signs of rhubarb poisoning include irritation of the mouth, loss of appetite, lethargy, diarrhoea, abdominal tenderness and severe dehydration.”

    Read on 10 October 2026

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