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CalcMenu July 13, 2026 · 7 min

The same blight hit Scotland one year after Ireland — and landlords used it to clear the land instead of feeding the people on it

Phytophthora infestans reached the Scottish Highlands in 1846, one year after Ireland, threatening 200,000 people. Relief was faster and better organized than Ireland's — but landlords used the crisis to accelerate the Highland Clearances, evicting over 40% of some island populations and shipping thousands overseas.

Illustration of a blighted potato plant beside a small ship silhouette, representing the Highland famine and emigration

One pathogen, one year apart, two very different responses

Phytophthora infestans — potato blight — devastated Ireland in 1845. In 1846 it reached the Scottish Highlands and Islands, putting an estimated 200,000 people at risk across roughly three-quarters of the crofting region. Same fungus, same island group of Britain and Ireland, twelve months apart. What happened next diverged sharply from the Irish story covered elsewhere in this series — not because Scotland’s crisis was smaller, but because the response to it was shaped by a very different set of interests.

Relief that actually worked

Unlike Ireland, where the death toll ran into the hundreds of thousands, the Highland famine’s death toll was, in the words of historians who’ve studied both crises, “incomparable” to Ireland’s — because relief this time was faster and more effective. The Free Church of Scotland, strong in exactly the areas the blight hit hardest, was raising the alarm and organizing help before the government acted at all, distributing meal regardless of the recipient’s denomination. It also arranged for over 3,000 men to travel to Lowland Scotland for railway construction work — removing mouths to feed from the crisis zone while sending wages back to the families left behind.

By February 1847, the Free Church’s effort merged with Edinburgh and Glasgow relief committees into the Central Board of Management for Highland Relief, which by the end of that year had raised roughly £210,000 — worth something like £17 million in 2018 purchasing power — funding meal distribution and organized public works. Relief on this scale, this fast, is exactly what Ireland’s famine response lacked, and it’s the direct reason the Highlands didn’t see mass starvation on the Irish scale.

The part that makes this a different story than Ireland’s

Here’s where the Highland famine stops looking like a smaller, better-handled version of Ireland’s tragedy and starts looking like something else entirely: landlords used the crisis as cover to accelerate evictions that were already underway. The Highland Clearances — the forced removal of tenant farmers to make way for large-scale sheep farming — had been happening intermittently since the late 18th century, most notoriously under the Duke of Sutherland’s factor Patrick Sellar, who cleared roughly 15,000 tenants off a million-acre estate between 1810 and 1820. The 1846 famine handed landlords a fresh justification to finish the job.

Crofting areas lost roughly a third of their population between the early 1840s and late 1850s. In the Hebrides and other remote areas, the toll was far worse — over 40% of inhabitants evicted by 1856. Some landlords paid directly for “assisted emigration,” a term that did real work to make forced displacement sound voluntary: over 16,000 crofters were shipped to Canada and Australia at landlord expense, not out of charity, but because an empty glen converted to sheep pasture was more profitable than a glen full of tenants who could no longer pay rent after their food crop failed. The Highland and Island Emigration Society, active from 1852 to 1857, assisted the passage of roughly 5,000 more emigrants specifically to Australia.

The same administrator, both famines

Sir Charles Trevelyan, the civil servant whose laissez-faire approach to Irish famine relief is still cited as a case study in administrative failure, was also involved in the Highland response. The contrast in outcomes between the two famines has less to do with Trevelyan personally and more to do with who else was involved: Scotland had the Free Church stepping in fast and independently of the state, while Ireland’s relief depended far more heavily on a government machine that moved too slowly and too reluctantly. Same official, same institutional instincts, different civil-society response — and a genuinely different result.

What this means beyond the history

The Highland Potato Famine is a useful corrective to a simple version of the Irish story that sometimes gets repeated: that a potato blight alone caused a humanitarian catastrophe. In the Highlands, the blight was real and the hunger was real, but a lower death toll didn’t mean less harm — it meant the harm took a different form. Faster relief prevented mass starvation; it didn’t prevent mass displacement. The people who survived the famine in the Highlands were, in large numbers, still not living where they had before it started — not because they starved, but because landlords decided the crisis was the moment to finish clearing them out. Continued unrest over exactly this pattern led to the Highland Land War of the early 1880s, and eventually the Crofters Holdings (Scotland) Act of 1886, which finally gave crofters legal security of tenure — decades after the famine that had been used to remove so many of them.

How CalcMenu keeps a crisis response honest, whichever form the crisis takes

Whether a food-supply shock threatens people through hunger, displacement, or both at once, the numbers behind your own response should be as reliable as the history deserves.

  • Real cost and supply visibility, so a crisis response is built on accurate data, not assumption.
  • Consistent, documented procedures across every site, so a shock doesn’t become an excuse for undocumented decisions.
  • Accurate recipe and sourcing data, independent of how a supply disruption gets explained after the fact.

CalcMenu can’t rewrite how the Highland Clearances used a famine as cover. It can make sure that whatever crisis your own kitchens face, the numbers behind your response hold up to scrutiny.


Want your kitchen’s crisis response as well-documented as its everyday numbers? Book a free 15-minute call with our team — no commitment: Schedule a call.

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