What does it mean to dream about potato?
A potato usually points to the plain staple, humble sustenance and the basics that quietly keep a household fed.
Four ways to read it
Each reading below comes from a named tradition and a cited source, so you can see where it came from and decide what fits your dream.
Freud
Freud would read the potato as plain nourishment, the unglamorous food that meets a basic need. It can carry the wish for sufficiency rather than luxury. A rotten or blighted crop may mark a fear of the basics failing.
After Freud, The Interpretation of Dreams (Brill trans., 1913), public domain.Jung
Jung would see the potato as a humble emblem of the earth's plain provision, grown hidden in the dark before it is dug up. It can mark something nourishing that has been quietly developing out of sight. Your own sense of having enough is worth noting.
Jungian concept (our summary).Modern
Continuity ties the potato to waking thoughts of food, thrift, and the providing of the basics. It may follow a meal or a worry about getting by. Whether the crop was sound or spoiled can shade the meaning.
Continuity hypothesis (our summary).Mythological
The potato carries the deep memory of both plenty and famine, the staple whose failure could empty a land. In the cultures it fed it stands as the very image of the daily bread of the poor.
Rosmerta Publishing editorial synthesis (after Brewer; Frazer).