Lily Cat Poisoning Symptoms. Depending on the amount swallowed, age, size and general health of your cat, these symptoms can be seen hours to days later after the contact. The first signs of lily toxicity in a cat may be seen as early as two hours.
Signs of lily toxicity can occur within two hours of ingestion, and start with gastrointestinal signs such as. Poisonous plants such as lilies. Many substances can cause poisoning in cats.
