Iduna

Iduna is Norse for Spring.  She's the Goddess of the spring-time including new sprouts and Eternal Youth.  

She is likened to Persephone because of her link to youth.  

I created the sigil for Iduna.

The main story in mythology is Iduna's as the keeper of home grown Youth Perserving Apples.  She is in charge of distributing these to the Gods, who get offered one-per-day.  The Gods get hooked on them because they preserve their youth.  

For more on apples, see the game Apples to Apples.