The plant commonly known as the Christmas Cactus belongs to the genus Schlumbergera, specifically the species Schlumbergera bridgesii. It is crucial to distinguish it from other holiday cacti, like the Thanksgiving Cactus (Schlumbergera truncata) and the true Easter Cactus (Hatiora gaertneri), as they share similar care requirements and non-toxic properties. More importantly, it must not be confused with the highly toxic holiday plant, the Amaryllis, or with other genuinely poisonous cacti that may have sharp spines. The Christmas Cactus is characterized by its segmented, flat, leaf-like stems and beautiful, pendulous flowers that bloom in winter.
According to the American Society for the Prevention of Cruelty to Animals (ASPCA), the Christmas Cactus (Schlumbergera species) is listed as non-toxic to both cats and dogs. This classification is also supported by other animal poison control centers. This means the plant does not contain known chemical compounds or principles, such as insoluble calcium oxalate crystals (found in plants like Peace Lilies), saponins, or alkaloids, that are typically identified as dangerous to the gastrointestinal, neurological, or cardiac systems of companion animals. Therefore, it is considered safe to keep in a household with pets.
While the Christmas Cactus is classified as non-toxic, it is not intended for consumption. If a curious cat or dog chews on or ingests a significant portion of the plant's stems, it may experience mild physical discomfort due to the mechanical irritation of the plant material. The fibrous nature of the plant can be difficult to digest, potentially leading to symptoms such as mild vomiting, diarrhea, or temporary lethargy. This is a common physical reaction to eating any non-food plant matter and is not indicative of poisoning. The risk is generally low, but monitoring a pet after ingestion is always prudent.
Even with its non-toxic status, it is wise to practice responsible plant placement. Placing the Christmas Cactus in an area that is less accessible to pets, such as on a high shelf or in a room they cannot enter, can prevent any potential for gastrointestinal upset. Furthermore, providing pets with their own safe grass or designated chew toys can help divert their attention away from houseplants. If a pet is persistently drawn to chewing on plants, regardless of their toxicity, it is advisable to consult with a veterinarian to rule out any underlying nutritional or behavioral issues that may be driving this behavior.
