Germany: Herbs and Vegetables From a Pigsty

Why It Matters

Repurposing idle livestock buildings creates a circular‑economy solution that cuts logistics emissions and diversifies farm income, addressing both sustainability and profitability pressures in German agriculture.

Key Takeaways

• Stallgrün repurposes empty pigsties for indoor herb and vegetable farming
• System automates irrigation, fertilisation, lighting, and climate control
• DBU funding of €125,000 (~$135,000) supports the pilot project
• Repurposing cuts transport emissions and creates new farm revenue streams

Pulse Analysis

The rapid decline of pig farming in Germany—44% fewer farms between 2013 and 2023—has left a surplus of sturdy, insulated structures that are now underutilized. These buildings, traditionally designed for animal welfare, offer a unique opportunity for the indoor agriculture sector. By converting pigsties into controlled‑environment farms, entrepreneurs can tap into existing infrastructure, sidestepping the high capital costs of constructing new greenhouse facilities.

Stallgrün’s solution hinges on a fully automated system that regulates irrigation, fertilisation, lighting, and climate parameters. Funded with €125,000 (approximately $135,000) from the German Federal Environmental Foundation, the start‑up has demonstrated two years of successful pilot operations in Münster. The technology enables consistent, year‑round production of high‑value herbs and vegetables, regardless of external weather conditions, while maintaining low energy consumption thanks to the buildings’ solid insulation.

Beyond the immediate financial upside for former pig farms, the model delivers broader environmental benefits. Localized production slashes transport distances, reducing carbon emissions associated with importing over five million tons of vegetables annually. The approach also aligns with circular‑economy principles, turning obsolete livestock assets into productive food‑growth hubs. If adopted at scale, this repurposing could reshape Germany’s agricultural landscape, offering a resilient supply chain and new growth avenues for rural economies.