Venus flytraps are not toxic to cats. According to authoritative sources including the ASPCA, Venus flytraps are classified as non-toxic to cats and do not pose a poisoning risk. If a cat nibbles on a Venus flytrap, it might cause mild digestive upset such as temporary vomiting or diarrhea due to the cat's general sensitivity to plant material, but no toxic effects are expected. The trap mechanism of the Venus flytrap also cannot harm a cat physically. The main concern is protecting the plant from damage caused by curious cats that might bat at or chew on it.

Summary:

• Venus flytraps are non-toxic to cats.
• Mild digestive upset may occur if ingested.
• The plant’s trap mechanism cannot injure cats.
• Protect the plant from cat damage by placing it out of reach.

If a cat exhibits persistent symptoms after exposure, consulting a veterinarian is advised.