The Flower Merchant of Frankfurt: Emanuel Sweert and the Florilegium of 1612

The Frankfurt Book Fair of the early seventeenth century was one of the great commercial events of the European year — a gathering of printers, publishers, booksellers, and merchants from across the continent, held twice annually in the imperial city on the Main. But in 1612, among the books and pamphlets and broadsheets that filled the stalls of the fair, there appeared something unusual: a catalogue of flowers. Emanuel Sweert, a Dutch plant merchant who had served as keeper of the imperial gardens for the Holy Roman Emperor Rudolf II in Prague, had brought to Frankfurt an illustrated catalogue of the exotic plants he had for sale — tulips and hyacinths, anemones and fritillaries, and, among them, the marigolds that appear on the cover of this journal. The Florilegium — the flower book — that Sweert published at the fair was one of the first illustrated plant catalogues in the history of botany: a work that combined scientific documentation with commercial enterprise in a way that reflected the extraordinary moment in European history when the passion for exotic flowers was beginning to transform the economies and cultures of the northern Netherlands and the German lands.

The marigolds that Sweert documented — the African marigold, Tagetes erecta, and its relatives, brought to Europe from the Americas in the sixteenth century and already, by 1612, established as one of the most popular flowers in the European garden — are among the most vivid and immediately recognisable of the plants in his catalogue. Their golden and orange flowers, their pungent scent, their extraordinary productivity — a single plant can produce hundreds of blooms in a season — made them favourites of gardeners across Europe, and their appearance in Sweert’s Florilegium is a reminder that the story of the European garden is also the story of the Columbian Exchange: the movement of plants, animals, and ideas between the Old World and the New that transformed the natural history of both.

Emanuel Sweert: Plant Merchant and Imperial Gardener

Emanuel Sweert was born around 1552, probably in the Netherlands, and spent much of his career in the service of the great courts and collectors of early modern Europe. His most prestigious appointment was as keeper of the imperial gardens for Rudolf II — the Habsburg emperor whose court in Prague was one of the great centres of Renaissance collecting and natural history, and whose passion for curiosities, automata, and exotic plants made his court a magnet for naturalists, artists, and merchants from across Europe. Rudolf’s collections — the Kunstkammer and Wunderkammer that filled the rooms of Prague Castle — included some of the finest botanical specimens in Europe, and Sweert’s role as their keeper gave him access to a network of plant merchants, collectors, and naturalists that extended across the continent.

When Sweert published his Florilegium in 1612 — the year of his death, as it turned out — he was drawing on decades of experience in the European plant trade. The catalogue was engraved by Johann Theodor de Bry, a member of the famous de Bry family of Frankfurt engravers whose work had illustrated some of the most important natural history publications of the late sixteenth century, including the accounts of the first European voyages to the Americas. The combination of Sweert’s botanical knowledge and de Bry’s engraving skill produced a catalogue of considerable scientific and artistic quality — one that documented the exotic plants of the European garden with a precision and a visual richness that made it one of the most important botanical publications of the early seventeenth century.

The Florilegium: Between Science and Commerce

The word florilegium — from the Latin for “gathering of flowers” — was used in the early modern period to describe illustrated collections of flower images, produced for a variety of purposes: as records of garden collections, as pattern books for artists and craftsmen, as scientific documents, and, in Sweert’s case, as commercial catalogues. Sweert’s Florilegium was unusual in combining all of these functions: it was at once a scientific record of the plants he had for sale, a visual advertisement for his stock, and a work of considerable artistic quality that could stand alongside the great botanical publications of the period.

The plants that Sweert documented in his Florilegium were, for the most part, the exotic novelties that were driving the European passion for rare flowers in the early seventeenth century. Tulips — introduced to Europe from the Ottoman Empire in the 1550s and already, by 1612, the objects of intense commercial interest that would culminate in the tulip mania of the 1630s — appear prominently in the catalogue. Hyacinths, anemones, fritillaries, and the other bulbous plants that were transforming the European garden are documented with the same precision and visual richness as the marigolds. Together, they constitute a snapshot of the European plant trade at a moment of extraordinary excitement and commercial energy — a moment when the passion for exotic flowers was beginning to reshape the economies and landscapes of northern Europe.

The Marigold: From the Americas to the European Garden

The marigolds that appear on the cover of this journal — the African marigold, Tagetes erecta, and the French marigold, Tagetes patula — are, despite their common names, native to Mexico and Central America. They were brought to Europe in the sixteenth century, probably by Spanish traders returning from the Americas, and they spread rapidly across the continent: the African marigold via North Africa (hence its common name) to Spain and Portugal, and thence to the rest of Europe; the French marigold via France, where it was cultivated in the gardens of the Huguenot refugees who had fled the religious wars of the sixteenth century.

By the time Sweert documented them in his Florilegium, marigolds were already established as one of the most popular flowers in the European garden. Their golden and orange flowers — the colours of the sun, of gold, of the autumn harvest — made them symbols of warmth and abundance in the garden symbolism of the period. Their pungent scent, which modern gardeners value as a natural pest repellent, was noted by the herbalists of the sixteenth century, who attributed to it a variety of medicinal properties. And their extraordinary productivity — their ability to bloom continuously from early summer to the first frosts — made them practical as well as beautiful, filling the garden with colour through the long months of the growing season.

Johann Theodor de Bry and the Frankfurt Engravers

The engravings that illustrate Sweert’s Florilegium were the work of Johann Theodor de Bry, a member of one of the most important families of engravers and publishers in early modern Europe. The de Bry family — originally from Liège, but established in Frankfurt from the 1580s — had produced some of the most important illustrated publications of the late sixteenth century, including the monumental Grands Voyages and Petits Voyages series that documented the European exploration of the Americas, Africa, and Asia. Their engravings combined scientific accuracy with artistic quality in a way that made them the standard reference for natural history illustration in the period, and their Frankfurt workshop was one of the most productive centres of illustrated publication in early modern Europe.

Johann Theodor de Bry brought to Sweert’s Florilegium the same combination of precision and visual richness that had characterised the family’s earlier work. The marigold engravings — showing the flowers in their characteristic forms, with the detailed rendering of petals, leaves, and stems that was the hallmark of the best botanical illustration of the period — are among the finest in the catalogue, and they remain, more than four centuries after their publication, images of considerable beauty and scientific interest.

A Journal for Those Who Find Joy in the Garden

Our Emanuel Sweert Marigold Journal carries these 1612 engravings across its full wraparound cover — the marigolds of the Frankfurt Florilegium, documented by a Dutch plant merchant at the dawn of the great age of European botanical commerce, engraved by Johann Theodor de Bry with the precision and visual richness of the finest Frankfurt workshop. It is a journal for those who find joy in the garden, who understand that a flower can carry within it the history of a continent, who appreciate the extraordinary moment in European history when the passion for exotic plants was beginning to transform the world.

Inside, 150 perforated lined pages await your garden notes, plant observations, seasonal reflections, or whatever form your engagement with the natural world takes. The casewrap sewn binding opens completely flat — ideal for sketching alongside your notes. The matte laminated cover preserves every detail of de Bry’s engravings in a finish that rewards close examination.

In 1612, Emanuel Sweert brought his flower catalogue to the Frankfurt Fair and offered the marigolds of the Americas to the gardeners of Europe. Perhaps the pages inside will help you record what blooms in your own corner of the world.

References & Further Reading

• Blunt, Wilfrid & Stearn, William T. The Art of Botanical Illustration. Antique Collectors’ Club, 1994. [The standard history of botanical illustration, covering the florilegium tradition within which Sweert’s work belongs.]
• Dash, Mike. Tulipomania: The Story of the World’s Most Coveted Flower and the Extraordinary Passions It Aroused. Crown, 1999. [On the Dutch flower trade of the early seventeenth century, the commercial world in which Sweert’s Florilegium appeared.]
• Freedberg, David. The Eye of the Lynx: Galileo, His Friends, and the Beginnings of Modern Natural History. University of Chicago Press, 2002. [On the scientific culture of early seventeenth-century Europe within which Sweert’s botanical documentation belongs.]
• Lack, H. Walter. Garden Eden: Masterpieces of Botanical Illustration. Taschen, 2008. [Includes discussion of the florilegium tradition and the great illustrated plant catalogues of the early modern period.]
• Pavord, Anna. The Tulip. Bloomsbury, 1999. [On the history of the tulip in Europe, the commercial flower trade, and the world of plant merchants like Sweert.]
• Prest, John. The Garden of Eden: The Botanic Garden and the Re-Creation of Paradise. Yale University Press, 1981. [On the cultural and religious significance of the European garden in the Renaissance and early modern period.]
• Willes, Margaret. The Making of the English Gardener. Yale University Press, 2011. [On the spread of exotic plants — including marigolds — through the gardens of early modern Europe.]