Botanists Preserved Hundreds of Thousands of Samples During the Siege of Leningrad: They Refused to Flee or Fight

September 1, 2026

Since the 1920s, the botanists of Leningrad literally preferred to starve rather than touch their hundreds of thousands of seeds.

They did not flee the besieged city. They did not join the trenches to fight the invader. During the siege of Leningrad, a handful of botanists made a far quieter, yet equally deadly choice: to stay locked inside with sacks of rice, corn and potatoes, never touching them, until they died of hunger. In total, 700,000 people died of hunger in Leningrad during the 872 days of the siege. Nine of them worked in the same building, surrounded by food they categorically refused to consume.

To note

  • Nine researchers die of hunger in the same building, surrounded by provisions they refuse to touch
  • Their seed collection, gathered over twenty years, represented the world’s largest plant bank
  • The institute’s founder also dies of hunger in prison, unaware of his colleagues’ sacrifice hundreds of kilometers away

A collection born of twenty years of obsession

The story begins well before the war. In the interwar period, the geneticist Nikolai Vavilov traveled across five continents, visiting 64 countries in total, to collect plant varieties and crop specimens. He learned fifteen languages to be able to exchange directly with local farmers. The result of this quest: a institute in Leningrad that would become, by contemporary estimates, the largest living library of plant material ever assembled. By the time the German army surrounded the city in September 1941, the collections counted 250,000 seeds.

Rice, corn, potatoes, wheat, peanuts: tens of thousands of unique varieties, some of them unavailable anywhere else in the world, slept in the drawers of this former downtown palace. An alive safeguard against future famines, conceived by a man who had himself witnessed Russia devastated by hunger at the start of the century.

The impossible dilemma

When food began to run short in the besieged city, the question became brutally concrete. Trapped with dwindling reserves, the botanists faced a terrible dilemma: should they distribute the seeds to the starving population, or keep them in reserve in the hope that future scientists could use them to prevent future famines? Around them, the city was literally collapsing. Rationing tightened, adults were limited to a quarter-pound of bread per day, and people even started consuming lipstick, leather hat brims and fur coats.

In this chaos, the institute became a target on two fronts: for the advancing German soldiers and for the civilians who knew what lay behind those walls. The staff decided to barricade the windows and lock themselves inside with their treasure. At night, they took turns watching over the sacks of grain, not against human raiders, but against rats. Starving themselves, they spent entire nights fending off rodents with metal rods.

Nine deaths, no seed eaten

The sequence reads like legend, except that it is documented. A rice specialist, a potato specialist, the peanut specialist still clinging to his bag of seeds, and six others: nine scientists from the institute died in this way, one by one. The peanut expert collapsed at his desk, surrounded by thousands of nuts he had never eaten. The rice specialist died in the same manner, with whole bundles of edible grains lying beside him.

What is striking is not only the personal sacrifice but its repetition. Nine deaths, in the same building, for the same reason, over several months. No attempt to steal a handful of rice to last one more day. The choice was collective, and it held firm until the end by those who paid with their lives.

The irony that never left this story

While his colleagues were letting themselves die to protect his work, Vavilov himself was no longer in Leningrad. Arrested by order of Stalin in 1940, he was serving a sentence in a gulag while the world’s largest seed bank he had built remained besieged in the city. Suffering from lung infections, neglect and deprivation, Vavilov died of hunger in January 1943, in a prison in Saratov. The founder of an enterprise intended to eradicate famine in the world died of hunger, just as the scientists safeguarding his collection did, hundreds of kilometers away. The regime that had sent him to prison benefited, perhaps unknowingly, from the sacrifice of its own former colleagues.

The siege ended in January 1944. The city breathed again, food returned, but for the survivors of the institute, relief was tempered by a profound sadness for the colleagues who had disappeared. The paradox remained intact: those who had food at hand chose death rather than betray a mission that, in their eyes, transcended their own survival.

A still fragile heritage today

That sacrifice was not in vain from a scientific standpoint. Many of the crops we consume today come from crossbreeds developed from the varieties these scientists saved from destruction. The Vavilov Institute, now located in Saint Petersburg, still preserves hundreds of thousands of samples, some of which remain unique in the world. Yet the threat has not vanished: more recently, some of its crops on the outskirts of Saint Petersburg were threatened by a real estate development plan, proof that preserving a century-old plant heritage remains, even today, a daily battle, far from bombardments but equally real.

Sindre Halvorsen

I write about space exploration, frontier science and the technologies that are quietly shaping the future. From Norway, I follow the missions, discoveries and ideas that connect life on Earth with what lies beyond it. My goal is to make complex subjects clear, useful and worth paying attention to.