Christian Cay Lorenz Hirschfeld

He had his works illustrated with copperplate engravings based on drawings by artists such as Brandt, Weinlig, Schuricht and Zingg, often engraved by Christian Gottlieb Geyser. Hirschfeld idea of Gartenkalenders was later taken up by Wilhelm Gottlieb Becker in his Taschenbuch für Gartenfreunde (1795–1799).

Born in Kirchnüchel, he was the second son of pastor Johann Heinrich Hirschfeld (1700–1754) and his wife Margarethe Sibylle (nee Reinboth, 1711–1759), a pastor's wife. He was taught by his father until the latter's death, upon which he was educated in Halle, attending the Franckesche Stiftungen from 1756 to 1760 and then studying theology, philosophy and the "fine sciences" (i.e. art history and aesthetics) until 1763. Frederick August, prince-bishop of Lübeck, took Hirschfeld on in 1765 as tutor to Wilhelm August (1759–1774) and Peter Friedrich Ludwig (1755–1829), the orphaned sons of Georg Ludwig von Schleswig-Holstein-Gottorf, both of whom were wards of Frederick August and Catherine the Great. In 1767, after a two-year stay in Bern, Hirschfeld was dismissed due to a dispute with Carl Friedrich von Staal, who had overall charge of the princes' education, though Hirschfeld's first book Landleben was also published in Switzerland that year. He stayed in Leipzig in 1768 and Hamburg in 1769.

• Illustration — Nursery for fruit trees in Kiel-Düsternbrook, detail of an 1811 plan by W. Beck, Ausschnitt (Landesarchiv Schleswig-Holstein) Hirschfeld only ever gave one lecture specifically on gardening (on "hortorum culturam elegantiorem" in the 1780 summer term) and is mainly known for masterwork Theorie der Gartenkunst advocating the English landscape garden, based on Joseph Addison, Thomas Whately and William Chambers and best known in its French translation. Unlike Friedrich Ludwig Sckell, who worked in England for several years and whose gardens such as at the 1777 Schloss Schwetzingen set the style in Germany, Hirschfeld never spent time in England or designed a garden, though he did view an English-style garden in Schierensee near Kiel in 1779. His ideas on sensitive landscapes were shaped by the countryside of his youth (known a century later as "Switzerland in Holstein"), his impressions of Bern and the graceful sweep of the Kieler Förde (largely destroyed in the 20th century). He also drew the idea of viewing landscapes from a moral-philosophical point of view from his contemporary Jean-Jacques Rousseau, who had written about an ideal garden following nature in his Julie; or, The New Heloise, whilst the English painter William Gilpin's idea of viewing gardens solely through aesthetic criteria was also an influence. Hirschfeld's book transmitted the idea of English landscape gardens in a simplified form and contributed to their spread through Germany, Scandinavia and (via essays by Andrey Bolotov) Russia.

• Das Landleben (1767; mehrfach erweitert und illustriert, 1768, 1776) • Briefe über die vornehmsten Merkwürdigkeiten der Schweiz... (1769; nur ein Band erschienen) • Anmerkungen über die Landhäuser und die Gartenkunst (1773) • Theorie der Gartenkunst (1775, 1777; sogenannte „kleine Theorie“) • Handbuch der Fruchtbaumzucht, 2 Teile (1788) • Theorie der Gartenkunst, 5 Teile (1779–1785, 1990) • Gartenkalender, 7 Ausgaben (1782–1789; ein weiterer Jahrgang als Kleine Gartenbibliothek, 1790)

• Het zomer-buitenleven, voorgesteld in XVIII zedekundige vertoogen (1771; Das Landleben, Dutch) • Aanmerkingen over de landhuizen en tuinkunst (1779; Anmerkungen über die Landhäuser..., Dutch) • Théorie de l’art des jardins, 5 volumes (1779–1785, 1973) Theorie der Gartenkunst, French translation by Frédéric de Castillon • Haandbog om frugttræers opelskning, 2 volumes (1790 and 1794; Handbuch der Fruchtbaumzucht, Danish translation by Andr. Svendsen) • Landlivet (1823; Das Landleben, free translation into Danish by Hans Chr. Heger) • Theory of garden design (2001; Theorie der Gartenkunst, abridged English translation and introduction by Linda B. Parshall)

* • Andreas Bürgi: Hirschfeld, Christian. In: Historisches Lexikon der Schweiz.