Yes, all parts of the Bleeding Heart plant (Dicentra spectabilis, now more correctly classified as Lamprocapnos spectabilis) are considered toxic to dogs, cats, and humans, including children. The plant contains several isoquinoline alkaloids which are harmful if ingested.
The primary toxic agents in Bleeding Heart plants are isoquinoline alkaloids. The most significant of these is protopine, which can negatively affect the central nervous system and the gastrointestinal tract. These compounds are present throughout the entire plant—roots, leaves, stems, and flowers—as a natural defense mechanism against herbivores. The roots and leaves are believed to contain the highest concentrations of these toxins. When any part of the plant is ingested, these alkaloids are released and can cause a range of adverse symptoms.
For dogs and cats, the Bleeding Heart plant is poisonous. The toxicity level is generally considered mild to moderate. The symptoms of poisoning typically manifest relatively quickly after ingestion and are primarily related to gastrointestinal distress. A pet that has chewed or swallowed part of the plant may exhibit signs such as vomiting, diarrhea, drooling, and abdominal pain or discomfort. In more severe cases, particularly if a large quantity is consumed, the alkaloids can also cause neurological signs, including lethargy, trembling, seizures, and difficulty coordinating movement. While serious complications are rare, the discomfort and potential for dehydration from vomiting and diarrhea make it a significant concern for pet owners.
The plant poses a similar risk to humans, particularly young children who are prone to exploring their environment by putting objects in their mouths. The attractive, unique heart-shaped flowers and intriguing seed pods can be very enticing to a child. Ingestion can lead to symptoms including skin irritation, vomiting, diarrhea, and stomach cramps. The level of toxicity is also considered mild to moderate for humans. However, the smaller body weight of a child means that even a small amount can cause a more pronounced reaction compared to an adult. It is crucial to seek medical advice immediately if a child is suspected of eating any part of this plant.
Bleeding Heart is a popular perennial shade garden plant known for its arching stems of heart-shaped pink or white flowers that dangle like lockets. It has fern-like, delicate green foliage. To prevent accidental poisoning, it is highly recommended to plant Bleeding Hearts in areas that are not accessible to free-roaming pets or playing children. For gardeners with curious pets or young children, consider fencing off the garden bed or choosing non-toxic alternative plants. Always supervise children and pets when they are in areas where these plants are growing. If you suspect ingestion, contact your veterinarian or physician immediately, or call a poison control center for specific guidance.
