Marigolds can be either non-toxic or mildly toxic to cats depending on the variety. The common pot marigold (Calendula officinalis) is generally considered non-toxic to cats and safe to grow around them. However, the French marigold (Tagetes species) is mildly toxic and can cause symptoms such as vomiting, diarrhea, drooling, stomach pain, and irritation if ingested in large quantities by cats. It is safest to avoid growing French marigolds around cats to prevent any health issues.

Differences Between Marigold Varieties

• Pot marigold (Calendula officinalis): Non-toxic, often used medicinally, safe for cats.
• French marigold (Tagetes species): Mildly toxic, can cause digestive upset if eaten in large amounts.

Symptoms of Marigold Toxicity in Cats

• Vomiting
• Diarrhea
• Drooling
• Stomach pain
• Skin and mucous membrane irritation

If a cat ingests the toxic variety or shows any signs of illness after exposure, a veterinarian should be consulted promptly.

In summary, pot marigolds are safe for cats, but French marigolds should be avoided or kept out of reach. Care should also be taken to ensure plants are free of harmful pesticides.