Yes, elephant bush (Portulacaria afra), also known as dwarf jade plant or spekboom, is poisonous to cats. This plant contains bufadienolides, which can be harmful if ingested by cats.
Cats that consume elephant bush may experience vomiting, diarrhea, abdominal pain, and lethargy. In severe cases, ingesting this plant can lead to more serious consequences, including heart-related issues.
To prevent accidental ingestion and potential health problems, keep elephant grass and other poisonous plants out of the reach of cats.