When the Po rises, everything rises — the fortunes of the Po Valley are tied to the river's behaviour. A good flood season deposits fertile silt on the fields and replenishes the water table; a dry year means poor harvests. The proverb extends to mean that when one element of a system thrives, everything connected to it benefits.
The Po is Italy's longest river and the backbone of its most productive agricultural region. It flows across the entire northern plain, fed by Alpine glaciers and Apennine streams, and for thousands of years its seasonal floods were the engine of agricultural abundance in the Emilian plain. The silt deposited by spring floods created some of the most fertile soil in Europe — soil that today produces the wheat for pasta, the grass for cows that make Parmigiano, and the feed for pigs that become Prosciutto di Parma. The river was also a trading route: Ferrara, at the Po delta, was a major commercial city precisely because of its position on the river system, and the Este dukes grew rich on tolls and trade. The great land reclamation projects of the nineteenth and twentieth centuries — bonifiche — drained much of the marshland of the Po delta, adding hundreds of thousands of hectares to the agricultural economy. Climate change has inverted the proverb's promise: recent droughts have lowered the Po to historic minimums, threatening the entire food production system. In 2022, the river was so low that farmers in Ferrara and Rovigo could walk across its bed, and the salt water of the Adriatic pushed inland, contaminating wells. The proverb now carries an ecological urgency that its originators could not have imagined.
Reflects the agricultural dependency on the Po's flood cycles that shaped the Emilian plain for millennia, and now carries new resonance amid the climate-driven droughts of the twenty-first century.
An old farmer explaining to a young agronomist why river levels matter to everyone
Non è solo una questione dei pescatori. Quand al Pò al crés, tüt la crés — e quand al cala, tutti soffriamo.
It is not just a matter for the fishermen. When the Po rises, everything rises — and when it falls, everyone suffers.
An economist commenting on a good year for the Emilian food industry
Annata eccellente per il Parmigiano e il Prosciutto. Quand al Pò al crés, tüt la crés — piogge abbondanti, erba alta, latte abbondante.
An excellent year for Parmigiano and Prosciutto. When the Po rises, everything rises — abundant rain, tall grass, plentiful milk.
An environmentalist citing the proverb during a conference on the Po drought crisis
I nostri nonni sapevano tutto: quand al Pò al crés, tüt la crés. E quando non cresce? Stiamo scoprendo la risposta, e non ci piace.
Our grandparents knew everything: when the Po rises, everything rises. And when it does not rise? We are discovering the answer, and we do not like it.
A teacher using the proverb to explain economic interdependence to students
Il Po è come il motore di un'economia. Quand al Pò al crés, tüt la crés — filiere, lavoro, commercio. È un ecosistema, non un fiume.
The Po is like the engine of an economy. When the Po rises, everything rises — supply chains, jobs, commerce. It is an ecosystem, not a river.