Monkshood (Wolfsbane)
Aconitum napellus
Monkshood (*Aconitum napellus*), commonly known as Wolfsbane or Devil's Helmet, is a spectacular but **extremely lethal and highly hazardous** perenni...
Symptoms to Watch For
Current risk level for cats based on ingestion severity.
Information provided by BioLens Veterinary Database. In case of emergency, always consult a professional.
If your pet ate this plant:
Professional First Aid Summary:
CRITICAL EMERGENCY! Aconitine is an extremely fast-acting cardiotoxin and neurotoxin. If your cat is suspected of touching or eating any part, immediately seek emergency veterinary care. If sap made contact with their skin or fur, wash the area immediately with soap and water using protective gloves.
In-Depth Botanical Safety Analysis
Scientific evaluation and toxicological breakdown of Monkshood (Wolfsbane)
Monkshood (*Aconitum napellus*), commonly known as Wolfsbane or Devil's Helmet, is a spectacular but **extremely lethal and highly hazardous** perennial plant in the buttercup family (*Ranunculaceae*) that is incredibly toxic to both dogs and cats. While appreciated for its dramatic spikes of deep-blue, helmet-shaped flowers, Monkshood is one of the most poisonous plants in the world. It contains exceptionally potent diterpene alkaloids, primarily **aconitine**, **mesaconitine**, and **hypaconitine**. These rapid-acting neurotoxins and cardiotoxins open sodium channels in nerve and muscle tissues, leading to rapid neurological and cardiac failure. Ingestion of any portion, especially the tuberous roots, triggers intense drooling, severe vomiting, weakness, respiratory failure, cardiac arrhythmias, paralysis, and death within hours. Even physical skin contact with the sap can cause numbness and local paralysis, making dermal exposure highly dangerous. Immediate emergency veterinary intervention is vital if exposure is suspected. For a safe, vibrant blue display, substitute Monkshood with non-toxic choices like Salvia or Sweet Alyssum. To study its unique hooded petals and toxicity mechanisms, view our detailed Botanical Profile for Monkshood.
To explore more information on pet safety and garden safety, browse our profiles on Plumeria (Frangipani) and Lily.
Toxic Parts
Recommended Pet-Safe Alternatives
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Specific Safety FAQs for Monkshood (Wolfsbane)
Is Monkshood toxic to cats?
Yes, Monkshood is highly lethal to cats. Consuming any part of the plant, especially the roots or seeds, or even drinking water from a vase holding the flowers, can cause rapid paralysis, heart failure, and death.
Is Monkshood toxic to dogs?
Yes, Monkshood is extremely toxic to dogs. Its potent alkaloids target the cardiovascular and nervous systems, leading to extreme weakness, vomiting, heart arrest, and rapid respiratory failure.
What active toxin is in Monkshood and why is it so deadly?
Monkshood contains aconitine and related diterpene alkaloids. These chemical compounds are highly efficient sodium channel activators that keep channels open in nerve and cardiac cells, resulting in rapid cardiac arrhythmias and neurological paralysis.
Can brushing against Monkshood harm my pet?
Yes. Monkshood's active toxins can be absorbed through mucous membranes and small abrasions on the skin. Brushing against broken stems or leaves can cause local numbness, tingling, and mild systemic poisoning, making it highly hazardous to cultivate in areas accessible to pets.
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