The Return of the Victory Garden: Why Europe’s Cities May Need to Grow Their Own Food Again
During the darkest years of the Second World War, millions of ordinary citizens transformed lawns, schoolyards, rooftops, parks, and vacant lots into food-producing landscapes. In the United States, Britain, Canada, and across Europe, “Victory Gardens” became symbols of resilience, patriotism, and survival. Families planted beans beside apartment buildings. Tomatoes climbed fences in bombed-out neighborhoods. Public parks became farmland.
By 1944, an estimated 20 million American Victory Gardens were producing roughly 40 percent of the nation’s fresh vegetables. Similar campaigns across Britain and continental Europe helped populations endure rationing, labor shortages, and disrupted trade routes during total war.
Today, the world faces a different kind of instability—but one that may prove just as dangerous.
Global farmland is shrinking. Supply chains are increasingly fragile. Climate shocks are disrupting harvests. Energy prices fluctuate violently. Fertilizer costs spike. Water shortages intensify. Meanwhile, urban populations continue to grow.
And so an old wartime idea is returning with renewed urgency:
What if cities grew far more of their own food?
A recent scientific study published in the journal Sustainable Cities and Society suggests that Europe’s urban areas may hold far more agricultural potential than most people realize.
The findings are startling.
Europe’s Untapped Urban Farmland
Researchers from Germany and the Netherlands examined whether unused rooftops, vacant lots, parks, courtyards, industrial land, and other underutilized urban spaces could be converted into productive vegetable-growing areas.
The study analyzed:
- 840 cities
- 30 European countries
- demographic data
- geospatial mapping
- climate conditions
- rooftop suitability
- available open land
Importantly, the researchers focused only on relatively simple, low-tech outdoor vegetable farming. They did not include futuristic vertical farming towers, hydroponics, climate-controlled indoor systems, or high-energy LED facilities.
In other words, this was not science fiction.
This was basic soil, sunlight, rainwater, and practical urban gardening.
Their conclusion?
Urban agriculture could theoretically provide nearly 30 percent of the vegetable demand for 190 million Europeans.
That is an astonishing figure.
The researchers estimated that between:
-
4,551 and 7,586 square kilometers
of urban land could potentially be used for vegetable cultivation.
That represents:
- 2.9 to 4.9 percent of total urban area studied.
From that space, cities could theoretically produce:
- 11.8 to 19.8 million tons of vegetables annually
That is roughly one-third of the total vegetable production currently reported in the countries examined.
Not imported vegetables.
Not shipped across continents.
Not dependent on vulnerable global logistics.
Locally grown food. Inside cities themselves.
Why This Suddenly Matters
For decades, wealthy industrial societies treated food systems as permanent, invisible infrastructure.
Supermarkets appeared magically full.
Imports arrived year-round.
Tomatoes crossed oceans.
Salad traveled thousands of kilometers.
Consumers stopped asking where food came from.
Then reality intruded.
The COVID-19 pandemic exposed the fragility of global supply chains. Extreme weather events damaged crops across continents. Energy crises drove up fertilizer prices. Wars disrupted grain exports. Droughts intensified.
At the same time, urban populations exploded while farmland disappeared under highways, suburbs, warehouses, and industrial expansion.
The modern food system is incredibly efficient—but also incredibly brittle.
When everything functions perfectly, globalized agriculture produces abundance.
When disruptions cascade, cities become dangerously dependent.
This is why urban agriculture is no longer just a hobby for environmentalists or lifestyle influencers posting rooftop kale photos on social media.
It is increasingly being discussed as a resilience strategy.
The Geography of Urban Food Production
The study found dramatic differences between cities.
Dense urban centers often have:
- very high food demand
- very limited growing space
Meanwhile:
- outer districts
- suburbs
- smaller cities
often possess far more unused land relative to population size.
This creates major imbalances in theoretical food self-sufficiency.
Some densely populated districts could produce only tiny fractions of their needs. Others, especially smaller cities with abundant open space, could theoretically generate vegetable surpluses.
This matters because urban agriculture is not a universal replacement for traditional farming.
No serious researcher claims cities can completely feed themselves.
Cities will not replace wheat fields, cattle ranches, or large-scale grain production.
But they can become shock absorbers.
They can reduce dependence on long supply chains.
They can increase local resilience.
They can supplement fresh food access during crises.
They can decentralize part of the food system.
And in unstable times, redundancy matters.
The Reality Check: Urban Farming Has Serious Limits
The researchers were careful not to romanticize the issue.
Their calculations were theoretical.
They did not model whether implementation would actually succeed in the real world.
Critical questions remain:
- Can rooftops safely support soil weight?
- Are buildings accessible?
- Do insurance rules allow farming?
- What about fire regulations?
- Who owns the land?
- Is irrigation available?
- Would rooftops be better used for solar panels?
- Can contaminated urban soils safely grow food?
Even rooftop estimates were conservative.
Only nearly flat roofs were considered suitable, and even then only partially usable because space must remain available for:
- maintenance access
- safety zones
- shade management
- building equipment
Urban agriculture sounds simple until infrastructure enters the conversation.
Then complexity explodes.
The Energy Trap
One of the most important insights in the discussion surrounding urban agriculture is that not all “local food” is automatically sustainable.
This is where reality collides with green marketing.
The study intentionally focused on low-tech farming because high-tech systems often consume enormous amounts of energy.
Vertical farming—frequently advertised as the future of food—can require:
- artificial lighting
- climate control
- ventilation systems
- pumps
- automation
- constant electricity
In some cases, the carbon footprint of indoor urban farming may actually exceed that of traditional agriculture.
A lettuce grown under LED lights during winter may require so much electricity that the emissions savings from shorter transport distances disappear entirely.
Energy matters.
Infrastructure matters.
Physics matters.
There are no magical technological shortcuts around thermodynamics.
The Infarm Collapse: A Warning From Reality
One of the most famous examples of urban farming optimism colliding with economic reality was Infarm, the Berlin-based vertical farming startup.
Infarm promised a revolution:
- ultra-local food production
- reduced transportation
- fresher vegetables
- lower emissions
- in-store farming systems for supermarkets
The company installed vertical farms directly inside grocery stores and urban retail environments.
It became one of Europe’s most celebrated agri-tech startups.
Then energy prices surged.
The economics collapsed.
Infarm filed for insolvency, and the broader vertical farming sector suffered a major credibility crisis.
The lesson was brutal but important:
Growing food indoors with massive energy inputs can become catastrophically expensive when electricity prices rise.
Nature has always subsidized agriculture through free sunlight.
Once humans attempt to replace the sun with industrial infrastructure, costs escalate rapidly.
What Urban Agriculture Actually Works Best For?
Urban farming is best suited for crops that:
- require little space
- grow quickly
- have shallow root systems
This includes:
- lettuce
- spinach
- herbs
- microgreens
- leafy vegetables
These crops are:
- highly perishable
- expensive to transport fresh
- relatively lightweight
- fast-growing
That makes them ideal candidates for local production.
Nobody is realistically proposing that downtown apartment towers replace rural potato farms or grain fields.
But supplementing urban diets with fresh vegetables?
That is far more plausible.
Why Victory Gardens Still Matter
The deeper lesson here is not merely agricultural.
It is cultural.
Victory Gardens succeeded during World War II because societies collectively understood something modern consumer culture has largely forgotten:
Food security is national security.
Communities that can produce at least part of their own food become harder to destabilize.
During wartime, citizens did not view gardening as quaint nostalgia.
They viewed it as civic participation.
Children learned how food grew.
Neighbors exchanged seeds.
Communities shared labor.
People became materially connected to survival.
Modern societies often treat food as a product rather than a system.
That disconnect becomes dangerous during crises.
Cities Were Never Meant to Be Totally Dependent
For most of human history, cities maintained closer relationships with nearby food production.
Markets were local.
Supply chains were regional.
Urban edges contained gardens, orchards, and livestock.
Hyper-globalization changed that.
Today, many major cities possess only a few days’ worth of food inventory at any given time.
That system works beautifully—until it doesn’t.
And once disruptions begin, rebuilding local production capacity is not instantaneous.
Knowledge matters.
Soil matters.
Seeds matter.
Water systems matter.
Community organization matters.
You cannot improvise food resilience overnight.
The Future May Look More Local
Urban agriculture will not solve global hunger.
It will not replace industrial farming.
It will not magically eliminate climate pressures.
But it may become one important layer of resilience in an increasingly unstable century.
And perhaps the biggest lesson is the simplest one:
In troubled times, it simply makes sense to grow food wherever sensible space exists.
On rooftops.
In schoolyards.
In courtyards.
Along railway edges.
Inside community gardens.
On abandoned lots.
Beside apartment buildings.
Not because cities can become fully self-sufficient.
But because resilience is built through redundancy.
The people who planted Victory Gardens during World War II understood this instinctively.
Modern societies may soon have to relearn it.
yours truly,
Adaptation-Guide
