When to Harvest Oranges in California

Late winter for Navel oranges and summer for Valencia oranges are the usual California harvest windows; the exact picking date depends on the tree’s variety and local growing conditions. Use the season as the time to begin tasting fruit, not as a deadline to strip the tree. Oranges do not become sweeter after picking, so flavor, not peel color alone, should make the final call.

Use this table to choose the first time to sample fruit from your tree.

Orange Type	Usual California Time to Begin Taste-Testing	What Confirms It Is Ready
Navel orange	Late winter	Full flavor; an orange peel can develop before the fruit is sweet enough.
Valencia orange	Summer	Full flavor; the peel may be greenish even when the fruit is fully ripe.

Why Orange Color Is Not a Harvest Date

Orange trees can carry fruit for a long time, and citrus often needs nine months or more to reach peak flavor. The exact pace varies with the cultivar, the tree’s growing conditions, and the local weather, so the fruit itself is a better guide than a calendar date.

Cool fall weather changes citrus peel color, but it does not make the fruit sweeter. That is why an orange may look fully colored yet taste tart, especially early in the season.

Valencia oranges are the biggest color exception. A Valencia may turn orange, then develop a greenish cast again while still on the tree. It can be fully ripe and juicy despite the green color.

How to Decide When to Harvest Oranges

Step 1: Identify the Tree and Its First Sampling Window

Look for the tree tag, planting record, nursery label, or graft label to identify the variety.
Match the variety to the harvest window in the table.
Treat that window as the beginning of your checks. A tree growing in a warmer, cooler, sheltered, or unusually productive spot may mature on its own schedule.
If you do not know the variety, wait until fruit has developed mature-looking color, then sample it.

Dwarf trees follow the fruiting schedule of their named cultivar. A dwarf Valencia, for example, produces Valencia fruit even though the tree itself stays smaller.

Step 2: Pick a Sample and Taste It

Choose an orange that looks sound and has reached typical size for the tree.
Taste the fruit rather than judging it by color, firmness, or size alone.
Look for pleasant sweetness, enough juice, and balanced acidity. A fruit that is only tart, bitter, dry, or bland needs more tree time.
If it is not ready, leave the crop on the tree and test again 1 to 2 weeks later.

Taste fruit from more than one part of the canopy when possible. Fruit exposed to more sun may mature differently from fruit growing farther inside the tree.

Step 3: Harvest Only the Fruit You Need

Support the orange with one hand and gently twist it from the stem.
If the stem resists, clip it rather than pulling hard enough to tear the peel or damage a branch.
Set harvested fruit down carefully to avoid bruising.
Leave sound, ripe fruit on the tree if you will not use it soon. The tree is the best storage place for mature citrus.

I use a harvest basket rather than carrying fruit in my arms, because it frees both hands to support the fruit and branch while picking.

Move picked fruit into shade, then refrigerate it if you are not planning to use it promptly.

California Orange Harvest Timing Varies by Tree

California produces oranges across many different microclimates, from cooler coastal areas to warmer inland valleys.

A tree’s harvest date can shift because of:

The orange variety and rootstock
The age and health of the tree
Sun exposure and canopy density
Crop load, the number of oranges the tree is carrying
Local temperatures and seasonal weather
Irrigation and soil conditions

A mature orange tree may also carry ripe fruit while it blooms and sets its next crop. That is normal, particularly with late-season varieties.

Watch fruit that has been hanging for a long time. Oranges that become overly soft, start rotting on the tree, split, or fall regularly have passed their best eating quality.

Cara Cara and Other Named Orange Varieties

If your tree has a variety label, confirm the exact variety from its tag or the seller’s record if possible. Then use the variety name to guide your harvest planning.

Named varieties can differ in color, acidity, and sweetness.

Store Oranges and Preserve Surplus Juice

Keep mature oranges on the tree when you can. Leaving them there lets you pick fruit as you use it and avoids filling the refrigerator with a whole crop at once.

For fruit you have picked:

Sort out damaged, split, or soft oranges and use those first.
Refrigerate sound oranges for about 4 to 6 weeks.
Keep oranges dry and loosely arranged so damaged fruit does not spoil the rest unnoticed.
Use countertop storage only for fruit you expect to eat soon; refrigeration is the better choice for the longest storage.

If a Valencia crop is more than you can use fresh, juice the oranges and freeze the juice in freezer-safe containers. Leave room for expansion, label the container, and freeze Valencia orange juice for up to 4 months. Thaw it in the refrigerator and use it promptly after thawing.

Plan Watering Before Harvest

For the sweetest fruit, harvest citrus when it has developed full flavor. This practice is meant to concentrate flavor as harvest approaches, not to make unripe oranges mature faster.

Use it only as a preharvest plan for an established, healthy tree where you control irrigation. Do not rely on water stress as a ripeness test, and do not withhold water from a tree already struggling with heat, wilt, disease, or other stress.

Fruit will not sweeten after picking, while a ripe Valencia can remain greenish on the tree, as explained in the UC IPM citrus harvesting guidance.

Frequently Asked Questions

When do Navel oranges ripen in California?

Navel oranges may not be ready until late winter in California. Start tasting then, but wait to harvest the main crop until the oranges have full flavor. Peel color alone can appear before the fruit is at its best.

When do dwarf Valencia oranges ripen in California?

Valencia oranges usually mature in summer. The dwarfing rootstock changes the tree’s size, not the basic fruit type. Taste a sample because a ripe Valencia may remain partly green.

Is picking oranges a seasonal activity in California?

Yes, but the picking season can stretch for months because ripe citrus holds well on the tree. Pick in rounds as fruit reaches good flavor and as you need it. This is often better than harvesting the entire tree on one day.

How can I tell whether Cara Cara or “Carrera” oranges are ready to pick?

Taste one orange first. If it is sweet, juicy, and balanced, begin harvesting the fruit you will use; if it is tart or bland, leave the oranges on the tree and test again in 1 to 2 weeks. Confirming the tree’s exact variety can help you know its usual season, but tasting remains the final test.

Do oranges keep longer in the refrigerator or on the counter?

Oranges keep longer in the refrigerator, where picked fruit can last about 4 to 6 weeks. The counter is suitable for oranges you expect to eat soon, while the tree is the best place to hold mature fruit before picking.