Rose inhabits the asteroid B-612, the Little Prince's home. She is the distinctive rose growing there, requiring attentive care and protection from cold and wind. The prince devotes himself to tending her needs. He constructs a protective screen and glass globe, waters her regularly, and removes caterpillars to ensure her well-being.

Their relationship proves complex. The prince perceives her behavior as demanding and feels she exploits his attentiveness. This dynamic contributes to his decision to leave the asteroid and journey across the universe. During their farewell, Rose expresses remorse for not adequately showing her affection, revealing underlying mutual care beneath their strain. She declines further protection, asserting her ability to endure independently. Her departure deeply affects the prince, who grapples with understanding how to love her while apart.

Rose and the prince's bond symbolize themes of love, responsibility, and the complexities of emotional connection. His reflections during his travels underscore her lasting importance as a representation of connection and the challenges inherent in caring for another.