The various organs of the body can represent the different aspects of the self.
In dreams they can signify diverse weaknesses and strengths.
A musical organ, having many systems to produce sound, often symbolizes the bodily organs.
Anything that is organic is characterized by a natural arrangement of parts, so in dreams comes to mean anything that is natural rather than manufactured.
To dream we are growing food that is organic suggests we need to pay attention to the quality of our lives.