Black grapes are back at Sam's Club! If you haven't tried these amazing grapes it will be a great time to try them now. Like cherries, they are only in the stores at certain times of the year. Someone from CA could probably tell us the times of the year you can get these. Last year we enjoyed them so much after trying some on display in the store. Then when I went back to buy some the produce manger informed me the season was over. I always thought the big black grapes had seeds but they are seedless and sweet and juicy...and of course good FOR you!!