If dreamed you that you picked immature plums, then in life you do not place emphasis on comfort and a cosiness in the house, considering that there are things more important. Ripe plums predict short joy. There are plums - to thoughtless entertainments. To pick plums - to implementation of desires. However it is possible that, having achieved it, you will understand that you actually aspired to another. To pick rotten plums from the earth means that in reality you should reconcile to the fact that some of the purposes planned by you are unattainable.
Be sure and keep any other thoughts out of your mind before drifting to sleep as a cluttered mind can decrease the chances that you will remember your dreams upon waking. Also, focusing on remembering your dreams upon waking in the morning is another very important thing. This sounds very easy, but is often hard for some to do. Interpret a dream by "dictionary dream of interpretation"
When you very first wake up, simply think about your dreams. Don't allow your mind to drift off to other things, just lay there and think about the things you dreamt about the night before - dictionary dream meaning.