Chamomile, Valerian, Lemon Balm & Passionflower: Four Botanical Traditions

These four plants are now routinely grouped together in modern evening herbal culture. They appear alongside each other in blends, in herbal guides, and in the language of contemporary wellness. But they did not originate as a single formulation, and they do not share a common historical tradition. Each has its own lineage, its own geography, and its own documented history of use.

This article traces those separate histories and asks a simple question: how did four botanicals from different traditions come to occupy the same place in modern herbal culture?

A Note on Evidence

As with all articles in this series, we use a four-tier framework to distinguish between different kinds of historical evidence:

1. Documented historical evidence — archaeological, textual or primary sources
2. Recorded traditional use — ethnobotanical or anthropological documentation
3. Later herbal tradition — practices recorded in later herbal texts or compendiums
4. Modern interpretation — how these traditions are understood or adapted today

These are not four levels of truth but four different kinds of evidence. When the surviving evidence is incomplete or disputed, we say so rather than trying to resolve the uncertainty.

This article is a particularly useful place to apply that framework, because the historical evidence behind each of these four botanicals is different in character and strength.

Chamomile

Chamomile has one of the longest and most geographically widespread documented histories of any plant in this group.

Matricaria chamomilla (German chamomile) and Chamaemelum nobile (Roman chamomile) are the two species most commonly referenced in historical and traditional contexts. Both have been cultivated and used across the Mediterranean and into northern Europe for centuries.

Documented historical evidence for chamomile is relatively strong. The plant is referenced in ancient Greek and Roman texts, including the writings of Dioscorides, whose first-century De Materia Medica describes chamomile preparations. References to chamomile also appear in some ancient Egyptian contexts, though the nature and extent of that evidence is less uniformly documented than the Greek and Roman record.

Recorded traditional use across European folk traditions is extensive. Chamomile infusions — prepared by steeping the flower heads in hot water — are among the most widely documented herbal preparations in European ethnobotanical records. The plant's association with evening and rest appears consistently across these records, though the reasons given vary by tradition and period.

Later herbal tradition reinforced chamomile's place in European herbalism. It appears in medieval European herbal texts and in the records of monastic gardens, where medicinal plants were cultivated and documented systematically.

The continuity of chamomile's documented use across cultures and centuries makes it one of the better-evidenced plants in this group.

Valerian

Valerian (Valeriana officinalis) has a long documented history in European herbalism, though the nature of that history is worth examining carefully.

Documented historical evidence places valerian in Greek and Roman medical writing. Dioscorides and Galen both reference the plant, though the uses they describe do not map straightforwardly onto modern associations. The name Valeriana does not appear in classical texts — it emerges in medieval Latin sources, and its etymology remains debated.

Recorded traditional use in European folk medicine is well-documented from the medieval period onward. Valerian root preparations — typically decoctions or tinctures — appear in European herbal records from the 9th century, and the plant is referenced in the writings of Hildegard of Bingen in the 12th century.

Later herbal tradition consolidated valerian's place in European herbalism significantly. By the early modern period, it was among the most widely referenced plants in European herbal compendiums, and its association with sleep and rest became more pronounced in this literature.

It is worth noting that the specific associations valerian carries in modern culture are largely a product of later herbal tradition rather than classical documentation. The Greek and Roman references are real, but the continuity between those references and the modern understanding of the plant is less direct than is sometimes implied.

Lemon Balm

Lemon balm (Melissa officinalis) originates in the eastern Mediterranean and western Asia, and has a documented history of cultivation and use that extends across Mediterranean and European traditions.

Documented historical evidence places lemon balm in classical Greek and Roman contexts. The plant is referenced by Dioscorides and Pliny, and its cultivation in Mediterranean gardens is well-attested. Its common name Melissa — the Greek word for honeybee — reflects its long association with beekeeping, where it was used to attract and calm bees.

Recorded traditional use in European folk medicine is extensive. Lemon balm infusions appear consistently in ethnobotanical records across southern and central Europe, and the plant was cultivated in monastic gardens across medieval Europe for both culinary and medicinal purposes.

Later herbal tradition gave lemon balm a particularly prominent place in European herbalism. It appears in the writings of Paracelsus and in numerous early modern herbal texts. The Carmelite nuns of Paris produced Eau de Mélisse des Carmes — a lemon balm-based preparation — from the 17th century onward, a product that remained in commercial production for centuries and represents one of the more specific documented examples of lemon balm's place in European herbal culture.

Lemon balm's association with calm and evening use is well-represented in later herbal tradition, though as with valerian, the specific modern framing is largely a product of that later tradition rather than classical documentation.

Passionflower

Passionflower (Passiflora incarnata) is the most geographically distinct plant in this group. Its origins are in the Americas, and its documented history of traditional use begins there — not in Europe.

Documented historical evidence for passionflower's traditional use comes primarily from ethnobotanical records of Indigenous peoples in the southeastern United States. The ethnobotanical documentation here is drawn primarily from 19th and early 20th century records, including documentation of Cherokee plant use. These records document the use of Passiflora incarnata for a range of purposes.

Recorded traditional use in European contexts begins after contact. Spanish missionaries and explorers encountered the plant in the Americas in the 16th century. The name passionflower itself is a European coinage — a reference to the Passion of Christ, reflecting the symbolic interpretations European missionaries applied to the plant's distinctive flower structure.

Later herbal tradition in Europe adopted passionflower relatively late compared to chamomile, valerian, and lemon balm. It appears in European herbal literature from the 17th century onward, and its association with rest and evening use in European herbalism developed primarily in the 18th and 19th centuries.

This makes passionflower's trajectory notably different from the other three plants in this article. Its traditional use is documented in the Americas first; its adoption into European evening herbal culture is a later development, and a relatively recent one by the standards of the other plants here.

Four Traditions, One Modern Category

What is striking about these four plants is not what they share historically, but how different their histories are.

Chamomile has continuous documented use across Mediterranean and European cultures spanning more than two thousand years. Valerian's classical references are real but its modern associations are largely a product of later European herbal tradition. Lemon balm has strong Mediterranean and monastic documentation, with its evening associations consolidated in the early modern period. Passionflower's documented traditional use begins in the Americas and was adopted into European herbalism centuries after the other three were already established.

They were not historically used together as a formulation. There is no ancient or medieval text that groups these four plants as a category. The grouping is a modern one — a product of 19th and 20th century European and American herbal culture, which drew on multiple traditions simultaneously and assembled them into a new category: the evening herb.

This is not a criticism of that category. It reflects how herbal traditions actually develop — through contact, exchange, and reinterpretation across cultures and centuries. But it is worth being clear that "evening herbs" is a modern organisational concept, not an ancient one.

From Separate Traditions to Modern Blends

Today, chamomile, valerian, lemon balm, and passionflower are routinely combined in evening herbal blends — a practice that reflects the convergence of their separate traditions into a shared modern context.

Wild Dreams brings together these four botanicals alongside others whose histories developed independently across different cultures and centuries. The blend reflects that modern convergence: botanicals from Mediterranean, European and American traditions, now used together in a form — the capsule — that is itself a recent development in the long history of herbal preparation.

Further Reading

• Traditional Evening Botanicals Across Cultures — the broad entry point for this series
• Traditional Botanicals for a Calmer Evening Routine — a wellness-oriented companion article
• Traditional Herbal Preparations: Teas, Infusions, Decoctions & Powders — how these plants were historically prepared