Paul Sédir’s Occult Botany (first published in French in 1902) treats a garden as a text. Every leaf, root, and thorn is a letter in an alphabet of fire, water, air, and earth, and the whole book is a lesson in how to read it. The copy on the desk smells, fittingly, of dried lavender and old star-charts.
The Man Who Read Gardens
Paul Sédir was the pseudonym of Yvon Le Loup (1871–1926), a central figure in the Paris occult revival that pulsed through the cafés and salons of fin-de-siècle France. He moved alongside Papus, Stanislas de Guaita, and the other magicians who turned Paris into a laboratory for the invisible. But while his contemporaries chased angels and demons, Sédir went underground, into the roots.

Occult Botany distills his heretical premise: plants are living signatures of cosmic forces, each one stamped with planetary correspondences that the wise can read like a map.
Mugwort grows by water, blooms at night, and carries silvery leaves, so Sédir files it under the Moon: sleep and the fluid unconscious. Rosemary turns toward the sun, golden and needle-sharp, and lands under the Sun: clarity and the burning core of the self. He meant this literally, as a working method.
The Doctrine of Signatures, Reclaimed
The book opens with theory that sounds like poetry. Sédir revives the ancient Doctrine of Signatures, the old belief that the Creator signed every plant with a clue to its purpose, and rebuilds it as a system of correspondences rather than a heap of medieval lore.

Form reveals element: twisted roots for Earth, volatile aromatics for Air. Habitat reveals planet: wetlands for Luna, mountaintops for Saturn. Effect reveals virtue: the plant’s action on the body mirrors its cosmic signature.
Then comes the catalog. Nearly 300 entries, each a compressed grimoire: botanical description, planetary ruler, elemental quality, traditional magical use, medicinal application, and, crucially, cautions. Sédir was no romantic. He knew that a plant ruled by Mars might staunch a wound or raise a fever, that Saturn’s herbs could bind bones or bring melancholy.
The tone throughout is that of a practical mystic. Sédir expects you to work at it, to test things and keep notes, because what he teaches is a method of reading rather than a cookbook of spells.
The Paris Occult Revival in Your Hands
What makes Occult Botany essential is its synthesis. Much of the plant lore appears in older herbals, but Sédir gathered it just as occultism was being systematized, when the scattered folk wisdom of rural France was being collated with academic rigour and esoteric intent.
The result is a bridge. On one side: the old grimoires, the cunning folk, the village wise-woman who knew which herb to bind with which day. On the other: modern herbalism, pharmacology, the scientific gaze. Sédir stands in the middle, fluent in both languages, translating.
The pen name was a small spell in itself. “Sédir” is an anagram of the French désir, desire, the byname Yvon Le Loup carried through Papus’s Paris circles before he turned to Christian mysticism.
How to Work With This Book
Sédir’s real teaching is a method, and here is how to approach it:
1. Learn the Alphabet First
Don’t leap to the plant entries. Read the opening chapters on signatures, elements, and planetary hours. Understand that Mugwort is not “for dreams” because someone said so, but because its lunar correspondence ties it to the unconscious, the night, and the tidal body.

2. Study a Single Plant
Choose a single entry that calls to you. Study it for a week. Notice when you encounter the plant in daily life. What time of day? What phase of moon? What was your emotional state? Sédir’s approach is observational before it is operational.
3. Design a Single Working
Don’t build a full ritual. Start small, a fumigation or a sachet, built around a single intent and a single plant across one moon cycle, and record everything: date, hour, weather, result. The notebook matters as much as the working.
4. Respect the Poison
Some of Sédir’s entries describe toxic plants such as aconite, belladonna, and hemlock. He includes them because they exist and because they have signatures and virtues. Do not use them. Treat these entries as historical documentation, not recommendation. The modern herbalist has safer allies for every purpose.
Who Needs This Book?
- The practitioner refining correspondences and timing
- The writer seeking primary-source atmosphere from the Paris occult revival
- The gardener who wants to see their plot as a planetary mandala
- The curious who suspects plants speak a language we have forgotten how to hear
The Living Text
Occult Botany is a working document, one man’s attempt to read the green world as a living scripture. Some of its science is dated and some of its attributions are debatable, but the method holds up: look closer, correspond widely, and treat the plant as a partner rather than a product.
Sédir himself did not stay in the garden. Within a few years he had turned from ceremonial occultism to a quiet Christian mysticism, founded the Amitiés Spirituelles in Paris, and by his death in 1926 the green book was already slipping out of print. It has survived as what it always was: a field guide to reading plants as if they meant something, written by a man who, for a while, was sure they did.
Frequently Asked Questions
Q: What is Occult Botany and why does it matter?
A: A 1902 compendium of magical plant lore from the Paris occult revival, treating plants as living symbols with planetary correspondences. It bridges traditional herbalism and esoteric practice.
Q: Is it suitable for beginners?
A: Yes, if approached as a study text rather than a spellbook. Sédir’s correspondence tables are clear, but the real work is observational, learning to read signatures takes time.
Q: How are plants organized?
A: By planetary rulership and elemental signature, derived from form, habitat, scent, and traditional use. The system reflects 19th-century occult synthesis rather than modern botany.
Q: Are there toxic plants in the entries?
A: Yes. Some entries describe poisonous plants historically used in witchcraft or medicine. These are included for completeness. Do not use toxic plants. Stick to gentle, well-documented allies.
Q: Where should I start?
A: Read the theory chapters first. Then pick one plant that interests you. Study its entry, observe it in life, design one small working (a sachet, an oil), keep notes. Repeat.
Image Sources
- Paul Sédir (Yvon Le Loup), photograph, 1909. Public domain via Wikimedia Commons.
- Astrological / planetary symbols from Culpeper’s English Physician and Complete Herbal (1789). Internet Archive / Wikimedia Commons. Public domain.
- Mugwort (Artemisia vulgaris), chromolithograph from Köhler’s Medizinal-Pflanzen (1897). Public domain via Wikimedia Commons.
Paul Sédir’s ‘Occult Botany’ is available in various editions. The original French (Traité de Botanique Occulte, 1902) remains the definitive text for serious study.
Sources
Bibliography. The same list is held in the article’s frontmatter for the citation tools that read it programmatically.
- Paul Sédir (Yvon Le Loup), Occult Botany: Sédir’s Concise Guide to Magical Plants (Rochester, VT: Inner Traditions, 2021); first published in French, Paris, 1902
- Christopher McIntosh, Eliphas Lévi and the French Occult Revival (Albany: SUNY Press, 2011), on Papus, the Ordre Martiniste, and the fin-de-siècle Paris occult milieu
- Nicholas Culpeper, The English Physician (Complete Herbal) (London, 1652), the doctrine-of-signatures and planetary-herb tradition Sédir inherited
