If you were to walk through the dense, humid forests of Northern Nueva Ecija in the late 19th century, your progress would have been halted not by a river, nor a mountain, but by a vine.
Specifically, a prickly, aggressive species of wild rattan known locally as barit. This plant was a nightmare for travelers. It grew in tangled, impenetrable walls, its thorns tearing at clothes and skin, choking out trees and rendering the land seemingly useless. It was a “green fortress” that nature had erected to keep humans out.
This geographical hostility gave the area its original, uninviting name: Kabaritan. Literally, “The Place of the Barit.”
And yet, this story isn’t about a vine. It is about how a place defined by a thorny weed became the stage for a peculiar economic miracle, driven by a group of people who simply refused to take “no” for an answer.
The Domino Effect
The year was 1894. The Spanish colonial era was in its twilight. To the north, in the Ilocos region and Pangasinan, families were starving for arable land. They looked south toward the vast plains of Nueva Ecija, but the “Kabaritan” forest stood in their way.
Here is where the history books usually gloss over the human struggle. These settlers, primarily Ilocanos, didn’t just move in; they waged a war against the vegetation. With nothing but bolos and sheer grit, they hacked through the barit vines.
But as they cleared the thorns, they discovered a geological secret. The soil beneath the vines wasn’t just dirt; it was a unique alluvial mix, fed by the runoff of the Caraballo Mountains to the north. It was rich, loamy, and held water in a way that was peculiar—too dry for continuous wet rice farming in some months, but too wet for others.
For decades, this settlement remained an obscure, dusty barrio. It was tossed around bureaucratically like an unwanted parcel—first belonging to the town of Puncan, then annexed by Lupao. It wasn’t until the settlers petitioned the Governor-General that it gained independence, renaming their town San Jose to invoke the protection of Saint Joseph against the harsh wilderness.
But the true mystery remained: What was this city actually for? It was a “gateway” geographically, sitting right on the edge of the Central Luzon plains before the elevation climbs toward the Cagayan Valley. Yet, for years, it was just a stopover. A place you drove through, not to.
The Agricultural Plot Twist
Fast forward to the post-war era. The town had grown, eventually becoming a city in 1969. But it needed an identity. The rice paddies were productive, but every town in Central Luzon had rice.
Then, a quiet agricultural experiment began. Farmers realized that the specific climate created by the Caraballo foothills—cool, dry winds dropping down at night—combined with that specific soil discovered beneath the old barit vines, created the perfect laboratory for a crop that is notoriously difficult to grow in the tropics.
This crop required a delicate balance of moisture and dryness to prevent rotting. It needed the specific sandy-loam texture that the Ilocano pioneers had unearthed a century prior.
Suddenly, the “Place of Thorns” began to produce something else entirely. It wasn’t gold, and it wasn’t timber.
The Reveal
The city that began as a tangled mess of Barit vines is now one of the high Onion Producers of the Philippines.
That specific soil composition, once guarded by thorns, now produces a significant portion of the country’s supply of red and yellow onions. The city’s obscure history—from a “Cabaritan” wasteland to a barrio of Puncan, and finally to San Jose City—culminated in an agricultural explosion that dictates market prices in Metro Manila.
Every year, the Tanduyong Festival is held not to celebrate the barit vine that gave the place its first name, but the pungent, tear-inducing bulb that gave the city its fortune. In a supreme irony, the town founded on a plant that caused physical pain (thorns) is now sustained by a vegetable that makes you cry.

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