Most oranges ripen in December, although some, such as Valencia oranges and blood oranges, ripen later. It's best to allow the citrus to ripen and get sweet on the tree since they will not sweeten any more once harvested. Some citrus fruit (satsumas, notably) are ripe when there's still a green blush on the skin.

How do you know when a Valencia orange is ripe?

Firm oranges may not be fully ripe; most orange varieties soften at least slightly when fully sweet. Valencia orange types may shift back toward a green color after turning orange and before ripening. Navel oranges generally turn orange while still tart and acidic, long before they are ready to harvest.

What is the season for Valencia oranges?

Valencias are summer season oranges that are typically available from March thru September and are the perfect orange for juicing because of their full, balanced and bursting sweet-tart flavor, succulent flesh and bright-colored pulps and juice.?