The common garden canna (Canna generalis), or canna lily, is not poisonous to dogs. A similar sounding plant called the calla lily (Zantedeschia aethiopica) is poisonous to dogs, however, since it contains insoluble calcium oxalates which can be toxic to canines if ingested.
About this Author
Kate Hornsby has been a professional pet sitter for a number of years and a small business owner for over twenty. She is the current Atlanta Pets Examiner and has written several articles on pet care and operating a small business. Hornsby attended the Academy of Art online, studying Interior Architecture and Design while pursuing commercial flight training at Aviation Atlanta in Georgia.