How do the roses and the rose hips symbolize different things?

Esperanza's father's rose plant serves as a symbol of hope and rebirth..... a reminder of Papa and the fact that he would want Esperanza and her mother to continue to live.

Rose Hips:

"Abuelita said the rosehip contained the memories of the roses and that when you drank tea made from it, you took in all the beauty that the plant had known."