Modified Grapes is a hybrid weed strain made from a genetic cross between GMO and Purple Punch. Customers tell us Modified Grapes effects include drowsiness and relaxation. Medical marijuana patients often choose Modified Grapes when dealing with symptoms associated with anxiety, stress, and insomnia. Bred by Symbiotic Genetics, Modified Grapes features flavors like grape, berry and honey. The dominant terpene of this strain is pinene.