The Garden of Cyrus

[[File:The Garden of Cyrus (1658) frontispiece.gif|thumb|right|Frontispiece to The Garden of Cyrus (1658).

The Latin text, from Quintilian's Institutio Oratoria, translates: "What is more beautiful than the quincunx, that, from whatever direction you regard it, presents straight lines?" ]] The Garden of Cyrus, or The Quincuncial Lozenge, or Network Plantations of the Ancients, naturally, artificially, mystically considered, is a discourse by Thomas Browne concerned with the quincunx—a pattern of five points arranged in an X (⁙), as on a die —in art and nature. First published in 1658, along with its companion Urn-Burial, in modern times it has been recognised as Browne's major literary contribution to Hermetic wisdom.

The book begins with the biblical creation, allusions to Plato's discourse the Timaeus and speculation upon the location of the Garden of Eden. It continues on orchard planting patterns of the Ancient Persians, who used the quincunx pattern to ensure "a regular angularity, and through prospect, was left on every side". Browne explores the number 5|five and the quincunx pattern as seen in art and human design (chapters 1 and 2) as a pattern in nature, in particular through his extensive study of botany (central chapter 3) and mystically (chapters 4 and 5).

Written during a time when restrictions on publishing became more relaxed during Oliver Cromwell's Protectorate, The Garden of Cyrus is Browne's contribution to a "boom period" decade of interest in esoterica in England. Browne's discourse is a neoplatonic and neopythagorean vision of the interconnection of art and nature via the inter-related symbols of the number five and the quincunx pattern, along with the figure X and the lattice design. Its fundamental quest was of primary concern to Hermetic philosophy: proof of the wisdom of God, and demonstrable evidence of intelligent design. The discourse includes early recorded usage of the words "prototype" and "archetype" in English.

The 19th- and 20th-century critic Edmund Gosse complained of the book that "gathering his forces it is Quincunx, Quincunx, all the way until the very sky itself is darkened with revolving Chess-boards", while conceding that "this radically bad book contains some of the most lovely paragraphs which passed from an English pen during the seventeenth century".

Hugh Aldersey-Williams in his 2015 book In Search of Sir Thomas Browne links the quincunx pattern to his research on the history of Buckminsterfullerene and molecular structures.