Yerba mate cooperative pivots toward mixed organic farming

María Elena Corrales has spent forty-three years watching her family's land respond to rain and sun. Her father planted the first yerba mate on this hillside in 1981, a single crop that sustained three generations. Now, as the cooperative she chairs enters its third decade, Corrales is betting that the future belongs to farms that grow more than one thing. In the past eighteen months, Cooperativa Verde del Sur has planted cacao on two hundred hectares, avocado on another hundred and fifty, and is testing specialty vegetables—quinoa, organic soybeans, heritage beans—on experimental plots scattered across member holdings.

The shift reflects a quiet anxiety running through Tierra Verde's agricultural sector. Yerba mate prices have softened as global supplies have expanded; climate patterns have become less predictable; and the cooperative model, once a bulwark against market volatility, now faces pressure from consolidation and federal bureaucratic delays. Corrales sees diversification not as a luxury but as insurance. On a Tuesday afternoon in late July, she walked her cooperative's demonstration plots with a visiting agronomist from the Federal Agricultural Extension Service, examining cacao saplings and discussing frost-protection strategies for the avocado blocks.

The cooperative council approved the diversification plan in a series of votes through 2025 and 2026, but the path has been neither smooth nor unanimous. Older members, including Corrales's own uncle, argued for deepening expertise in yerba mate rather than spreading resources across unfamiliar crops. Younger farmers saw opportunity in organic certification and export premium pricing. The debate within the cooperative mirrors a larger question facing Tierra Verde: whether to deepen specialization or embrace the complexity of mixed farming.