Mission San Jose, CA: Olives take center stage today
A small-town olive festival is a fine excuse to tell a bigger story — how the olive reached California at all. It came with Spanish friars in the 1700s, took the name Mission, and outlived the missions that planted it.
An olive festival at an old California mission is not a coincidence of setting. The olive and the mission arrived together. To understand why olives feel so at home in California — and why one variety is simply called Mission — you have to go back to a chain of Spanish religious outposts and the practical, self-sufficient friars who planted them.
How the olive came north
When Franciscans under Junípero Serra began founding missions in Alta California from 1769, they brought the plants of a working farm: grapevines, fruit trees and olives, carried up from the older missions of Mexico. Each mission needed oil for food, for lamps and for religious rites, and the olive obliged. Planted mission by mission up the coast, one hardy cultivar took so thoroughly to California that it lost its old name and became known simply as the Mission olive.
| When | What happened |
|---|---|
| 1769 | Franciscans found San Diego, the first Alta California mission; olives among the plants brought north |
| Late 1700s–1820s | Olives spread up the mission chain for oil, food and lamp fuel; the ‘Mission’ cultivar takes hold |
| 1834 | The missions are secularised; groves are neglected but many trees survive |
| Late 1800s | Revival: Mission olives milled and cured commercially as California farming grows |
| Early 1900s | The canned ‘California ripe olive’ is perfected and becomes the American olive |
| 1990s onward | A California extra-virgin revival; heritage festivals celebrate the Mission tree |
The variety that stayed
The Mission olive is a survivor and a generalist — hardy, cold-tolerant for an olive, good both pressed for oil and cured for the table. That dual usefulness is exactly why the friars favoured it and why it persisted through neglect. Many trees simply carried on for decades after 1834 with nobody tending them, which is how a religious supply crop quietly became a piece of Californian landscape and identity.
From mission oil to the American olive
California’s later olive fame took an odd turn. Rather than oil, the state became known for the canned black ‘ripe olive’ — mild, lye-cured, evenly dark, a California invention that filled twentieth-century pizzas and relish trays across America. Only from the 1990s did serious California extra virgin re-emerge. The festivals, meanwhile, keep the older thread alive, celebrating the Mission tree that started it all.
The Mission olive today
- Still grown for both oil and table, prized for its heritage and hardiness.
- The ancestor of California’s ripe black olive industry.
- Found as gnarled old trees around former mission sites.
- Celebrated at autumn olive festivals up and down the state.
California’s Mission olive: common questions
What is the Mission olive?
The olive cultivar brought to California by Spanish Franciscan missionaries from 1769 onward. It adapted so well it took the name Mission and became the state’s founding olive variety.
How did olives reach California?
With the missions. Franciscan friars carried olives north from Mexico to plant at each new Alta California mission for oil, food and lamp fuel, starting at San Diego in 1769.
Why is it called the Mission olive?
Because it spread through and became identified with the California mission chain, eventually losing its original Spanish name in favour of its adopted home.
Is the Mission olive used for oil or eating?
Both. It is dual-purpose — pressed for a soft, mild oil and cured for the table — which is exactly why the self-sufficient missions valued it.
What is a ‘California ripe olive’?
A mild, lye-cured, uniformly black canned olive perfected in California in the early 1900s. It became the classic American olive, distinct from the Mediterranean table-olive traditions.
People think of California olives as a modern, Napa-era thing. They are older than the state itself. Those gnarled trees around the missions were planted for lamp oil and communion, not for a farmers’ market, and they simply refused to die when the friars left. When you go to one of these festivals, look past the stalls and find the oldest tree on the site. That, not the marketing, is the actual monument.
Drawn from the history of the California missions and the Mission olive cultivar.