Question
Is this poisonous or toxic?  the plan seemed to be dead or on it's way... so I dumped soil and all in garden...not thinking the dog would even be interested...roots seem to be mushy.  Can this hurt our dog?  He is a large year and a half old boxer?  Thank you for your time and trouble...blessings, Sue Reynolds, Saint Louis, MO

Answer
I just saw that you named it...sorry.....Mandevilla are very common in our Florida landscape,,and my Dog and Cats have never shown any interest in it, but as far as it being poisonous,,,I don't think so, but you may want to double check with your local poison center for comfirmation.