Back to Search Subject - Black Cherry Jam QUESTION - A client would like to make jam from wild black cherries and wants to know if it is safe to do so. We do know the leaves of this cherry plant are toxic. We have been unable to find any information about the fruit. Can you help?! ANSWER - The fruit is safe to consume. The leaves are toxic according to this website - http://www.vet.purdue.edu/depts/addl/toxic/plant46.htm