Dahlias are mildly toxic to cats. They can cause uncomfortable signs such as gastrointestinal upset (vomiting, diarrhea), skin irritation, nausea, loss of appetite, lethargy, and loss of coordination. While these symptoms are usually mild and often resolve without severe treatment, some cats—especially very young, old, or those with pre-existing health issues—may experience more serious effects. Treatment is typically supportive, including hydration and anti-nausea care if needed. Overall, dahlias are rarely deadly to cats but should be kept out of their reach to avoid any risk.
