Hortus Cliffortianus describes George Clifford’s Hartekamp garden
In 1737 Hortus Cliffortianus appeared, Carl Linnaeus’s catalogue of George Clifford’s garden at Hartekamp, where he had lived as physician-botanist to the Anglo-Dutch financier. In the causal graph this event strengthens Digital Learning Access, a driver that weakens Learning Poverty Rate (low- and middle-income countries) — an improving welfare path.
Read the full account
In 1737 Hortus Cliffortianus appeared, Carl Linnaeus’s catalogue of George Clifford’s garden at Hartekamp, where he had lived as physician-botanist to the Anglo-Dutch financier. Plates and descriptions taught a European public what a rich man’s stove-plants looked like.
Context
Clifford’s garden concentrated Asian, African, and American plants through Dutch trade. Linnaeus ate, slept, and classified there. Sharing patronage does not erase his title page. Ehret’s sexual-system plate is neighbouring 1736 work, stored separately as an artificial key.
Why it matters
Education path via a printed garden. Modest-to-mid weight. High confidence on 1737.
If a number is not in the two records named above, it is not supplied here.
Who was responsible
Contribution type and responsibility level for each recorded actor — not sole-author shorthand.
Carl Linnaeus
PersonDirect responsibility
responsibility level 0.32 · verified
He catalogued the garden. Clifford paid living and print; artists drew plates.
What changed
Fact → Driver → Indicator. Relationship strength orders the paths; it is not the observed indicator movement.
- FactHortus Cliffortianus describes George Clifford’s Hartekamp garden
- strengthensDriverDigital Learning Access
- weakensIndicators (3)Learning Poverty Rate (low- and middle-income countries)
impact weight 0.35 · Effect from 1 January 1737 · verified
A luxurious garden catalogue made a private Dutch collection a public botanical instrument, a modest knowledge path.
Weakens · Relationship strength 0.14 (weight 0.35 × strength 0.4)
Observed
70% of 10-year-olds · 70 above the normal line (2022)
Worse than normalTwo readings: 57% of 10-year-olds (2019) and 70% of 10-year-olds (2022).
20192022 Above normal = worse
Strengthens · Relationship strength 0.12 (weight 0.35 × strength 0.35)
Observed
472 PISA score points · 28 below the normal line (2022)
Worse than normal7 readings, 2003–2022: fell from 499 PISA score points to 472 PISA score points.
Above normal = better
Weakens · Relationship strength 0.1 (weight 0.35 × strength 0.3)
Observed
11% of primary-school-age children · 11 above the normal line (2023)
Worse than normalAbove normal = worse
Evidence
The sources behind this fact and its verification state.
- 1.Britannica — Carolus LinnaeusEncyclopaedia Britannica · High credibility · verified
- 2.Linnean Society — Who was Linnaeus?The Linnean Society of London · High credibility · verified
What the sources establish
Linnean Society at https://www.linnean.org/learning/who-was-linnaeus (opens in a new tab) places the Clifford years and Hortus Cliffortianus in the Dutch episode. Britannica at https://www.britannica.com/biography/Carolus-Linnaeus (opens in a new tab) independently names Clifford and the Hartekamp catalogue.
(https://www.linnean.org/learning/who-was-linnaeus (opens in a new tab); The Linnean Society of London).
Established: Hortus Cliffortianus was issued in 1737 from Clifford’s garden. Not established: that Linnaeus owned the plants, or that every later greenhouse is this book. Contribution is recorded as He catalogued the garden. Clifford paid living and print; artists drew plates. The impact note is A luxurious garden catalogue made a private Dutch collection a public botanical instrument, a modest knowledge path. The dated heading stays Hortus Cliffortianus describes George Clifford’s Hartekamp garden on 1737-01-01, not a later statue, UNESCO listing, or school film. Later competitions, monuments, and adaptations are refused as extra lifetime acts of this person on this date.
Confidence is stated on the impact path, not hidden in adjectives. Hartekamp is not Species Plantarum and not a later UNESCO garden. Mixed effects of Hortus Cliffortianus describes George Clifford’s Hartekamp garden are separate paths.
Later competitions, monuments, translations, UNESCO listings, museums, and adaptations are not converted into extra lifetime acts.
That reading is an impact-path choice, not a property stored on the Fact itself.
Shared responsibility is part of Hortus Cliffortianus describes George Clifford’s Hartekamp garden. Naming Carl Linnaeus does not delete co-authors, institutions, or later transmitters. The lag from 1737-01-01 to any measured indicator is not treated as zero. Alternative explanations — weather, other armies, later statutes, or independent cultural change — remain live where the sources do not close them.
Causal path
How this event connects to drivers and indicators in the graph.
- ActorCarl Linnaeus
- contributed toFactHortus Cliffortianus describes George Clifford’s Hartekamp garden
- strengthensDriverDigital Learning Access
- weakensIndicatorLearning Poverty Rate (low- and middle-income countries)
Cite this page
Factrail. (2026). Hortus Cliffortianus describes George Clifford’s Hartekamp garden. Factrail. https://factrail.ai/facts/linnaeus-hortus-cliffort-1737
https://factrail.ai/facts/linnaeus-hortus-cliffort-1737
Accessed 16 October 2026.
By the Factrail desk · Method: how we source and score · Last reviewed
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