Franciscan Missions and California’s First Olives
California is now a serious olive-oil region, but the tree arrived late and by an unlikely route — carried north by Franciscan friars founding missions along the coast from the late eighteenth century. The olives they planted for oil and sacrament became the literal root of the state’s industry.

The olive reached California not with commercial growers but with the Church. From 1769 Spanish Franciscans built a chain of missions up the coast, and every mission needed olive oil — for cooking, for lamps and, above all, for the sacraments. So they planted olive trees in the mission gardens, and the variety that took hold became known simply as the Mission olive. For a long time it was effectively the only olive grown in the state. Read ‘Mission’ on a Californian label today and you are reading a direct line back to a friar planting a cutting in a mission courtyard.
The mission trail
From 1769 onward, Spanish Franciscans led by Junipero Serra established a chain of missions up the California coast, beginning at San Diego. Like every Spanish religious settlement they needed olive oil, so they planted olive trees in the mission gardens, working cuttings up from Mexico — themselves descended from the stock Spain had carried to the Americas two centuries earlier. The variety that took hold became the Mission olive, and for a long time it was effectively the only olive grown in California. Some of those early mission trees, remarkably, are still standing and still bearing. (The popular story that Serra planted the very first tree is more legend than documented fact — but the missions’ central role is not in doubt.)
From sacrament to industry
For decades the Mission olive was California’s default, cured for the table and pressed for a modest oil. After Mexico secularised the missions in the 1830s, cultivation waned for a time, then revived later in the nineteenth century as farmers and entrepreneurs built a commercial industry from the old mission groves. The Mission is hardy and productive but not the most refined oil olive, so growers imported Italian and Spanish varieties for better oil as the industry matured. Yet the Mission lineage endures — valued now for its history and its black ripe table olives as much as its oil.
How to judge a Mission oil
Here is the honest buying note. A Californian Mission oil is a genuine piece of living history, but judge it on its own terms rather than the legend. It tends to be mild and soft rather than green and peppery, sitting at the gentle end of the spectrum — lovely for a beginner, underwhelming if you want a robust, throat-catching oil. For that, look to the Italian and Spanish varieties California also grows superbly. For table olives, the ripe black Mission is the classic. Either way, buy by harvest date: California’s real competitive edge is not romance but freshness, oil pressed and bottled close to home and sold young.
| Arrived | With the Franciscan missions, from 1769 |
|---|---|
| First mission | San Diego de Alcala |
| The variety | The Mission olive, worked up from Mexican stock |
| Why planted | Cooking, lamps and, above all, the sacraments |
| Decline | After the missions were secularised in the 1830s |
| Today | Valued for history, black table olives and a mild oil |
California’s mission-olive timeline
| When | What happened |
|---|---|
| 1769 | First California mission founded at San Diego; olives planted |
| Late 1700s | The Mission olive spreads north along the mission chain |
| Early 1800s | Effectively the only olive grown in California |
| 1830s | Missions secularised; olive cultivation wanes |
| Late 1800s | A commercial industry revives from the old groves |
| Today | Mission prized for table olives and a mild oil; other varieties for robust oil |
Buying Californian olives
- A Mission oil is living history, but tends to be mild and soft, not green and peppery.
- For a robust oil, look to the Italian and Spanish varieties California also grows.
- For table olives, the ripe black Mission is the classic.
- Buy by harvest date — California’s real edge is freshness, not romance.
California’s mission olives: common questions
How did olives reach California?
With the Spanish Franciscan missions from 1769 — the friars planted olives in the mission gardens for cooking, lamps and, above all, the sacraments.
What is the Mission olive?
The variety that took hold at the California missions, worked up from Mexican stock; for a long time it was effectively the only olive grown in the state.
Did Junipero Serra plant the first tree?
That popular story is more legend than documented fact, but the Franciscan missions’ central role in bringing the olive to California is well established.
What happened after the missions closed?
After secularisation in the 1830s cultivation waned for a time, then revived later in the century as a commercial industry grew from the old mission groves.
Is Mission oil good?
It is a mild, soft oil rather than a robust one — lovely and gentle, but for a green, peppery oil look to the Italian and Spanish varieties California also grows.
A Californian Mission oil is a piece of living history, but judge it on its own terms — it tends to be mild and soft rather than green and peppery, closer to the gentle end of the spectrum. For a robust oil, look to the Italian and Spanish varieties California also grows well. For table olives, the ripe black Mission is the classic. Either way, buy by harvest date: California’s best advantage is not the mission legend but freshness — oil pressed close to home and sold young. And take the ‘Serra planted the first tree’ story with a pinch of salt; the missions mattered, the saintly detail is folklore.
Based on the history of the California mission olive and the Franciscan missions from 1769.