The answer is unequivocal: yes, chives are toxic to cats. They belong to the same Allium family as garlic, onions, and leeks, and all bulbous plants contain compounds that are dangerous to cats. Even a small taste can lead to serious health issues, so never allow your cat to nibble on chives.
The toxin in bulbous plants lies in their thiosulfates. Cats lack the enzyme needed to break down these compounds, allowing them to damage red blood cells. When red blood cells are harmed, they can no longer transport oxygen effectively, resulting in dangerous Heinz body anaemia. One bite typically does not cause an emergency, but continuous nibbling or consuming a larger amount can be fatal for a cat.
Symptoms of onion poisoning in cats
Symptoms of onion poisoning may not appear until days later, making it difficult to identify the situation unless you have seen your cat eating the plant. Therefore, it is essential to monitor your pet’s condition closely.
Typical symptoms of onion poisoning include:
- Fatigue and weakness: The cat is lethargic and does not move normally.
- Pale or bluish gums: Anaemia reduces the oxygen content in the blood, which is reflected in the colour of the mucous membranes.
- Rapid breathing or heart rate: The body is trying to compensate for the lack of oxygen.
- Loss of appetite, vomiting, and diarrhoea: Gastrointestinal symptoms are common.
- Reddish or brown urine: Haemoglobin released from damaged red blood cells discolours the urine.
If you suspect your cat has eaten chives or another bulbous plant, contact a veterinarian immediately. Never attempt to induce vomiting in your cat on your own.
4 other common but dangerous plants
Chives are certainly not the only plant that poses a threat to cats at home or in the garden. Many of our most common house and cut flowers are toxic to pets. Here are four plants that every cat owner should be aware of.
1. Lilies (Lilium and Hemerocallis genera)
Lilies are extremely toxic to cats. Every part of the plant – flower, leaves, stem, pollen, and even the water in the vase – is life-threatening. Just pollen that clings to the fur, which a cat licks off, can cause acute kidney damage. Symptoms such as vomiting, loss of appetite, and excessive thirst typically begin within hours. If left untreated, lily poisoning almost always leads to death. The safest option is to avoid bringing lilies into the home altogether.
2. Tulips and daffodils
The beautiful harbingers of spring, tulips and daffodils, are toxic. Daffodils contain an alkaloid called lycorine, and tulips contain Tulipalin A and B compounds. The bulbs of these plants are the most toxic, which a curious cat may dig up from the flower bed. Eating the above-ground parts usually causes oral irritation, drooling, vomiting, and diarrhoea. However, consuming the bulb or a large amount of the plant can lead to more severe symptoms, such as heart arrhythmias and breathing difficulties.
3. Ivy (Hedera helix)
The popular evergreen ivy contains saponins that are toxic to cats in its leaves and berries. Chewing ivy causes burning in the mouth, excessive drooling, vomiting, stomach pain, and diarrhoea. Although ivy poisoning is rarely fatal, it is a very unpleasant and painful experience for a cat.
4. Poinsettia (Euphorbia pulcherrima)
The reputation of the poinsettia as a deadly toxic plant is exaggerated, but it is not harmless. The plant’s milky sap is highly irritating. If a cat chews on the leaves, it is likely to result in irritation of the mouth and throat, drooling, and possibly vomiting. Severe poisonings are rare, but it is still advisable to keep the plant out of reach of pets.
How to create a safe plant environment for your cat?
Protecting your cat starts with prevention. Always ensure the safety of a new plant from a reliable source before acquiring it, and remove all toxic plants from your home and garden.
Fortunately, there is also a vast array of plants that are completely safe for cats. Provide your cat with safe chew options, such as cat grass (wheatgrass), so that its natural chewing instinct is directed towards a safe alternative. Other safe plants include the spider plant, areca palm, and catnip.
When your home is safe, you can have peace of mind. Maintaining peace of mind is also important when you are away from home. If you need a place for your cat to stay during a holiday or business trip, our professional and trained pet sitters ensure that the environment is completely plant-safe and that your cat receives the best possible care. Our experienced sitters can identify dangerous situations for pets, allowing you to relax.
You can book a care session directly through our booking system or contact us if you have questions about your cat’s specific needs.
Frequently asked questions
Is a small amount of chives immediately dangerous to my cat?
Yes, it is. Although one small bite rarely causes immediate distress, even a small amount is harmful, and repeated exposure can lead to anaemia. The severity of the poisoning depends on the size of the cat and the amount consumed, but the rule of thumb is clear: never allow your cat near chives.
Which herbs are safe for my cat?
Many herbs are safe and even beneficial. Catnip, lemon balm, valerian, and wheatgrass (cat grass) are good options that provide stimulation and can aid digestion. However, always ensure the safety of an individual plant from a reliable source before giving it to your cat.
Can my cat learn not to eat toxic plants?
Unfortunately, no. Cats are curious and often nibble on plants out of play or boredom, not hunger. The only way to guarantee safety is to remove all toxic plants from the cat’s reach. Never assume that a cat can distinguish between dangerous plants and safe ones.