Because the pomegranate was food from the Underworld, she had eaten this food and could not leave the Underworld (death).
No, but Persephone ate the pomegranate seeds, and was bound to the underworld for six months out of the year. Wiki on!!
Persephone did eat something in the Underworld. She was given pomegranate seeds to eat, which she did, thus binding her to the Underworld for half of the year.
Before she left Hades, Hades gave her three pomegranate seeds. when persephone left hades, she accidentally ate 7 pomegranate seeds.
Pomegranate seeds, the food of the underworld, and, having eaten even one seed, Persephone had to stay in the underworld for (depending on the story) three (or six) months every year.
Persephone, after eating the pomegranate seeds had to spend half the year in the Underworld and so became Queen as the wife of Hades, King of the Underworld.
Because while in the Underworld during her first stay with Hades she ate some pomegranate seeds. Eating them bound her to the Underworld, and she must return to it for half of the year, and is able to be with her mother and the living for the other half of the year.
Pomegranate seeds! YUM!! (well she technically didn't eat them, she sucked on them...)
Persephone refused to eat anything when she was first taken to the Underworld, out of protest. But when she was offered the pomegranate seeds she was very hungry. She only a few, but in eating them it tied her to the Underworld, forcing her to return for half of the year.
Demeter had to compromise with allowing Persephone to spend part of the year in the Underworld with Hades because of the agreement struck between Hades and Zeus. This compromise was the result of Persephone eating six pomegranate seeds in the Underworld, which bound her to spend a portion of each year there.
Hades offered his wife Persephone some pomegranate (or pomegranate seeds) so she would have to consider the Underworld her home.
She marries Hades and becomes Queen of the Underworld.
Hades kidnapped her and she ate 6 pomegranate seeds in the Underworld which trapped her there.