Pomona

Pomona or Pompona is the Roman minor goddess of plenty such as fruit trees, gardens and orchards. The pruning knife was her attribute. The wood nymph Pomona lived in the forest between Rome and its port at Ostia. It was her special duty to look after the fruit trees in a wood called Pomonal. She was beautiful, and many gods of nature and the countryside came to earn her love. But Pomona loved none of them, until Vertumnus revealed himself to her in his true form.

History
Pomona was the uniquely Roman goddess of fruit trees, gardens, and orchards, and her festival, which she shared with her husband Vertumnus, was on August 13th. Pomona watches over and protects fruit trees and cares for their cultivation, and her name is from the Latin pomum, fruit.

Pomona was among the Numina, guardian spirits of Roman mythology, who watched over people, places, or homes. The Numina are, in essence, the holy spirits of place, from which the word "numinous" derives. Pomona protected and inspired the abundance of the fruitful gardens and orchards. Her garden is said to be the most beautiful in the world. She had her own priest in Rome, called the Flamen Pomonalis. A grove sacred to her was called the Pomonal, located not far from Ostia, the ancient port of Rome.

The Last Olympian
Percy Jackson sees a bronze statue of Pomona during the Battle of Manhattan and mistakes her for the Greek goddess Demeter, making her react in indignation. She angrily throws metal apples on Percy. Her statue says she is on the side of the Titans saying the minor gods don't have recognition.

The Lost Hero
Clovis tells Annabeth and Jason that the goddess is strictly Roman and doesn't have a Greek counterpart.

Trivia

 * Pomona does not have a Greek counterpart (along with Janus, Terminus, and Bellona).
 * She was particularly associated with the blossoming of trees rather than with the harvest.
 * Pomona is also another word for mainland in Orkney.
 * According to her she is often mistaken for Demeter.
 * Pomona is also the seventh largest city in Los Angeles County, California, which was named after her.
 * Her name is from the Latin pomum, fruit.
 * Pomona happens to be the one of the two Roman gods to appear in the first series, other one being Janus.