Delft's oldest tree predates the Netherlands' own royal house by two centuries and still fruits every summer in a working almshouse courtyard. Its youngest tree is a graft from Germany, planted specifically to keep William of Orange's memory rooted in the city where he died. Eight verified trees, one of them a living link to a 1944 discovery once thought extinct.
0 / 8 visitados en Delft
1
The Black Mulberry of Hofje van Pauw
Black Mulberry (Morus nigra subsp. multicaulus) · 319 years, planted 1707 · Binnenstad
The black mulberry in the courtyard of Hofje van Pauw has been fruiting since before the Dutch East India Company's Delft chamber was a century old. Tree specialist Jorn Copijn identified it in 2023 as Morus nigra subsp. multicaulus, a subspecies not officially recorded in Europe until 1821, more than a century after this specimen was already growing here. The likely explanation involves no botanist at all: the VOC had traded out of India, where the subspecies originates, since 1700, and Delft kept its own VOC chamber from 1602, so a sea captain or merchant returning home is the more probable route than any recorded introduction. At 319 years old it ranks among the oldest fruit trees documented in the Netherlands. The hofje itself, an almshouse Elisabeth Pauw endowed by testament in 1707 for women who had fallen on hard times, still houses residents today, now adults with intellectual disabilities, and the tree has outlived every one of them. Its courtyard gate on Paardenmarkt stays unlocked during the day. Visitors are asked to keep to the garden and skip the windows, since the houses ringing the tree are still lived in, not a museum.
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2
The Horse Chestnuts of Sint Agathaplein
Horse Chestnut (Aesculus hippocastanum and Aesculus x carnea) · roughly 106 years, planted 1920 · Binnenstad
Five horse chestnuts on Sint Agathaplein, three white-flowered and two red, have stood outside the building where William of Orange was shot dead since 1920, planted as part of a coordinated square-wide planting rather than growing in on their own. The address carries more history than the trees themselves: Museum Prinsenhof occupies the former convent where William, leader of the Dutch revolt against Spanish rule, was assassinated on the staircase in 1584, and the bullet holes are still in the wall inside. De Boominspecteurs, commissioned by the municipality to assess the square's trees ahead of a major renovation, confirmed the chestnuts as part of the site's protected planting. The renovation itself started in 2025 and is due to finish in 2027, with the museum closed for the duration, and the municipality has stated the square's monumental trees are being kept in the new design even where other, younger planting is not. What that means for a visitor right now is straightforward caution rather than a locked gate: Sint Agathaplein is a public square, but a live building site sits next to it, so the usual free, unrestricted access may be temporarily altered until the work finishes.
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3
The Willemslinde of the Prinsentuin
Small-leaved Lime (Tilia cordata) · roughly 70 years, planted 1956 · Binnenstad
This winter linden did not grow from a seed that fell nearby. It grew from a twig cut from the Wilhelmslinde in Dillenburg, Germany, the tree under which William of Orange spent his childhood before he became the reluctant leader of the Dutch revolt and was assassinated in Delft in 1584. Supporters of the House of Orange took cuttings from the Dillenburg original and planted them at sites tied to William's life, and this one went into the Prinsentuin, the garden beside Museum Prinsenhof, in 1956. It is by a wide margin the youngest tree on this list, not even a century old against the mulberry's three, but it carries the most direct physical link to the man Delft is built around commemorating. The museum grounds are mid-renovation as of 2026, work that started in 2025 and runs to 2027, and the municipality has said the garden's historic trees are being kept rather than cleared for the new design. Until the museum reopens, treat the Prinsentuin as a garden worth checking on rather than one guaranteed open on any given day.
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4
The Dawn Redwoods of TU Delft's Botanic Garden
Dawn Redwood (Metasequoia glyptostroboides) · age undocumented, among the first of the species grown in Europe after its 1944 rediscovery · Wippolder
Every dawn redwood alive today, anywhere in the world, descends from a single discovery: a species known only from 150-million-year-old fossils, presumed extinct, until a forester found a living stand of it in a remote Chinese valley in 1944. An international seed-collecting expedition followed in 1947, and botanical gardens across Europe, including several in the Netherlands, raised their first Metasequoia glyptostroboides from that single haul. Two of them now dominate the middle section of TU Delft's Botanic Garden, tall enough to be the garden's own reference point long before a visitor reaches the rarer specimens around them. Nobody recorded the exact planting year for these two, so no source gives a precise age, only the certainty that they belong to the first generation of the species ever grown outside China since its rediscovery, making them roughly seventy to eighty years old by extension rather than by record. The garden charges standard admission and sits a short walk from Delft's main station, a working research collection rather than a park, with the redwoods' feathery, deciduous foliage turning copper in autumn before it drops, unusual for a conifer and part of what first convinced botanists this was something genuinely new.
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5
The Dutch Elms of Kalverbos
Dutch Elm (Ulmus x hollandica) · about 160 years · Wateringse Veld / Kalverbos
Fourteen elms stand at one corner of a park that used to be a cemetery. Kalverbos served as Delft's burial ground for 46 years before the city moved its dead to the Jaffalaan in 1874, and when the empty ground became a public park two decades later, laid out in the romantic style by garden architect Hugo Poortman, these trees were already grown. The register dates them to between 1860 and 1870, planted while this was still consecrated ground, which puts them at about 160 years old.
Four graves were left in place rather than moved, and the strangest belongs to Karl Wilhelm Naundorff, a Prussian clockmaker who spent his life insisting he was the lost Dauphin of France, Louis XVII, smuggled out of prison as a child while a substitute died in his place. Nobody believed him while he lived, and DNA testing in 2000 finally settled the argument against him, but his grave in this Dutch park still carries the fleur-de-lis of French royalty.
The elms have their own survival story. Dutch elm disease, named for the country that first identified it, swept through the Netherlands twice in the twentieth century and emptied whole streets of exactly this species. This grove made it through both waves and is now one of Delft's protected monumental groups.
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6
The Planes of Kalverbos
London Plane (Platanus x acerifolia) · about 130 years · Wateringse Veld / Kalverbos
Three plane trees went into Kalverbos around the years Delft finished the red-brick water tower that still looms over the park. Construction started in 1895, the tower pumped the city's water until 1996 and has since become a venue for parties. The register that protects these trees describes them standing in the same historic setting as the tower, an old bench and the graves nearby, planted as the park found its final shape.
Kalverbos itself began as a cemetery, in use for 46 years before Delft moved its dead to the Jaffalaan in 1874. Its conversion into a public park in 1894, laid out by garden architect Hugo Poortman in the romantic landscape style, gave it the winding paths it still has. These planes, dated to 1890 to 1900, are close to that age, among the first trees to grow up with the park rather than the burial ground it replaced.
London planes are a seventeenth century hybrid of an American and an Asian parent, fast growing and tolerant enough of clipping to survive on a Dutch street. Three of them, standing together at well over a century old, anchor one corner of a park that covers barely a hectare.
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7
The Wingnut of Nieuwe Plantage
Caucasian Wingnut (Pterocarya fraxinifolia) · about 130 years · Nieuwe Plantage
A wingnut gets its name from a seed built with two papery blades, and this one has grown for well over a century on ground that used to be Delft's city wall. The wall came down around 1890, and the register credits the new layout to a landscape architect surnamed Zocher, a name attached to some of the country's best known nineteenth century parks, who chose large, fast-growing species for the reclaimed rampart. That is the register's own account of why this edge of the city carries so many good trees planted at once.
Caucasian wingnuts come from forests around the Black Sea and the Caspian, and they grow faster than almost anything else planted alongside them in a Dutch garden, oaks and limes included. This one was planted between 1890 and 1900, putting it at around 130 years old, on a strip of the old rampart directly across the street from an ordinary Delft address, number 28 Nieuwe Plantage.
Nothing beyond the national monumental tree register has been found to confirm it further. If you know this tree, tell us.
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8
The Bald Cypress of Geer Boogerd
Bald Cypress (Taxodium distichum) · about 110 years · Nieuwe Plantage
A swamp tree from the American South outlived the psychiatric hospital that once surrounded it. The Sint-Jorisgasthuis stood on this ground for close to 150 years under its older name, Binnengesticht, rebuilt in the 1920s and finally demolished in the 1960s to make way for housing. Its bald cypress, planted somewhere between 1910 and 1920 in what was then the institution's large garden, is one of the few things on the site that survived the building coming down around it.
Bald cypresses are conifers that behave like broadleaf trees, dropping their needles every autumn, which is unusual enough among cone-bearing species that Delft's specimen stands out on a small square that gives no other hint of what stood here for a century and a half. In its native range along the Mississippi and the Gulf coast it grows in standing water and throws up woody knees around its base; on a Dutch street corner it just grows tall.
At around 110 years old, it is the youngest of Delft's newly registered trees and the only witness left to a building nobody living remembers walking into.
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