Islamic Interpretation of Dreams (Ibn-i Sirin):
In a dream, plums in season represent health and welfare. Otherwise, out of season, plums represent distress and difficulties. However, everybody draws benefits from seeing a plum tree in a dream.
If one sees himself eating a sweet and ripened plum in a dream, it means that he will satisfy his pleasures, passions, and wantonness.
If it tastes sour in the dream, then it represents his fear.
A plum tree in a dream also represents a rich person, or a spendthrift who is also dangerous but courageous when facing adversities, and who may become wealthy early in his life though he may die young. Eating plum out of season in a dream means suffering from a severe illness. Plucking a plum from its tree in a dream means seizing money from a dying person. Plums in a dream also represent the glad tidings of recovering what is lost if they are good, and a warningrn about what is evil should it happen again.
A plum in a dream also represents a good brother, or a good looking and a respectable companion.
The same interpretation applies for all types of berries.
(Also see Tree)