Astrological Herbalism
Definition
Astrological herbalism is the old practice of sorting medicinal herbs and plants by which planet rules them, and using those matches to choose a treatment in pre-modern medical astrology. Each plant was read as belonging to one of the seven classical planets, judged by its qualities (hot or cold, wet or dry), its shape, its growth habit, and its traditional use. Ideally, an herb was gathered while its ruling planet stood strong in the sky. Modern revival practice keeps the framework as historical reference, not as health advice.
In Tradition
Across Hellenistic, Arabic-medieval, and Renaissance Latin medical astrology, astrological herbalism was the treatment side of the constitution read from a chart: the first herb to reach for was one ruled by the planet whose qualities ran opposite to the imbalance found. Culpeper’s Complete Herbal (1652, public domain) is the standard English version, and it organises its medicines by planetary ruler rather than by the alphabet or by symptom.
In Practice
The astrologer-herbalist reads off a planetary-herb table arranged by the seven classical planets: Mars (hot, sharp herbs — garlic, nettles, mustard); Venus (cooling, soothing herbs — rose, vervain, thyme); Saturn (consolidating herbs for long-running conditions — comfrey, horsetail); Jupiter (expansive, liver-supporting herbs — dandelion, sage); the Sun (heart-supporting herbs — St. John’s wort, chamomile); the Moon (herbs of fluid and fertility — water plants, jasmine); and Mercury (herbs for the nervous system — lavender, valerian). The herb is matched to the imbalance shown in the patient’s birth or decumbiture chart, and gathering is timed to the herb-planet’s hour and to spells when that planet stands strong by sign and aspect.
Historical Origin
The herb-to-planet correspondences are systematised in Nicholas Culpeper’s Complete Herbal (1652, public domain), which arranges the English pharmacopoeia by the seven-planet rulership scheme. Bonatti’s Liber Astronomiae (Lean P14) preserves earlier medieval Latin per-planet rulership tables. The Carmen Astrologicum (Lean P10) and Greenbaum’s Daimon (Lean P08+P13+P15) supply the Hellenistic medical-astrology background. Cornell’s Encyclopedia of Medical Astrology (1933) consolidates the modern Western reception with extensive herb-planet listings.
Etymology
Origin: English/Latin. Meaning: From herba (plant) + astrologia — plants classified by stellar correspondence.
Further Reading
- Nicholas Culpeper, Complete Herbal
- H. L. Cornell, Encyclopedia of Medical Astrology