Mystic Luna
Weaver of Fate
Your tree by Celtic calendar
Celtic Tree Divination is a Western traditional divination practice that links each letter of the Ogham alphabet to a specific tree. Ogham is the oldest writing system of the Irish language, recorded by carving lines and notches resembling tree branches into stone or wood.
Each Ogham letter is associated with a particular tree, with 20 trees — including Birch, Rowan, Alder, Willow, and Hawthorn — forming the foundational symbolic system of the divination. Through this system, it offers interpretations that connect the cycles of nature with human destiny.
The Ogham alphabet is the oldest Irish writing system, used from approximately the 4th to 6th centuries. According to academic research, surviving Ogham inscriptions were primarily created between the 4th and 7th centuries, distributed across the Celtic-speaking regions of Ireland, Wales, Scotland, and Cornwall.
The association between trees and Ogham letters is recorded in the medieval Irish manuscript Auraicept na n-Éces (The Scholar's Primer, c. 900–1200 CE). This manuscript classified Ogham letters into four grades: chieftain trees, peasant trees, shrub trees, and herb trees.
The Ogham Tract (included in the Book of Ballymote) assigned tree names and poetic kennings to each letter, systematizing Ogham beyond a mere alphabet into a symbolic system for reading nature and the cosmos.
The modern system of Celtic tree divination was established by poet Robert Graves in his book The White Goddess (1948). Drawing on medieval Ogham manuscripts and Irish scholar Ruaidrí Ó Flaitheartaigh's Ogygia (1685), Graves devised a 13-month tree calendar.
Graves's theory is regarded by modern academia as lacking historical foundation. However, the 13-month tree calendar and Ogham-based divination system he proposed have been widely adopted in modern Neopagan and New Age divination, establishing themselves as the practical foundation of Celtic tree divination.
Academically, the tree associations of Ogham are based on medieval manuscripts, while the 13-month calendar system is a creation of Graves. LunaWitch clearly distinguishes between these two layers, providing both the traditional interpretation of medieval Ogham manuscripts and the practical system of the modern tree calendar.
Graves's 13-month tree calendar consists of 13 months of 28 days each (364 days total) plus one day at the end of the year. Each month is associated with a specific tree that carries unique meaning.
Birch (December 24–January 20, purification and beginnings), Rowan (January 21–February 17, protection and inspiration), Alder (February 18–March 17, courage and resolve), Willow (March 18–April 14, intuition and flexibility), Hawthorn (April 15–May 12, love and growth), Oak (May 13–June 9, strength and endurance), Holly (June 10–July 7, defense and balance), Hazel (July 8–August 4, wisdom and creation), Vine (August 5–September 1, abundance and artistry), Ivy (September 2–September 29, perseverance and loyalty), Reed (September 30–October 27, inquiry and truth), Elder (October 28–November 24, transition and completion).
This calendar does not align precisely with the solar calendar, but it is used by connecting the cycles of nature and tree growth periods to read the energy of the tree corresponding to an individual's birth period.
Ogham divination is traditionally performed using Ogham sticks or cards. Each stick or card is inscribed with one of the 20 Ogham letters, and the querent draws them randomly and arranges them for interpretation.
Various layout methods exist, including single draws (single letter interpretation), three draws (past·present·future triangular interpretation), and five draws (Ogham cross spread), with interpretation synthesizing each letter's tree meaning and poetic kennings.
For example, Birch (Beith) signifies new beginnings and purification, Rowan (Luis) signifies protection and spiritual inspiration, and Oak (Dair) signifies strength and endurance. The combination of drawn letters provides insight into the question posed.
Modern Celtic tree divination serves as a meaningful tool for those seeking to restore their connection with nature. By reading one's basic tendencies through the Sign Tree corresponding to one's birth period, and gaining insight into specific questions through Ogham divination, it offers a practical approach.
According to academic research, the tree associations of Ogham are a product of the intellectual tradition in which medieval Irish scholars incorporated the natural world into a writing system. Using this for divination can be understood not as mere superstition but as a practice that modernly inherits the Celtic worldview and semiotics.
LunaWitch's Celtic Tree Divination is based on authoritative sources including the Auraicept na n-Éces, the Book of Ballymote, and Robert Graves's The White Goddess, providing an integrated approach that combines traditional Ogham interpretation with the modern tree calendar system.
Celtic Tree Astrology Ogham Calendar 13 tree signs traditional theory, elemental associations, ruling planets, Ogham letters, and symbolic meanings of each tree
Fate via ancient runes
Big Three & planets by birth
Aura & chakra energy reading
Celtic Tree Divination is a Western traditional divination practice that links each letter of the Ogham alphabet to a specific tree. Ogham is the oldest writing system of the Irish language, recorded by carving lines and notches resembling tree branches into stone or wood.
The Ogham alphabet is the oldest Irish writing system, used from approximately the 4th to 6th centuries. According to academic research, surviving Ogham inscriptions were primarily created between the 4th and 7th centuries, distributed across the Celtic-speaking regions of Ireland, Wales, Scotland, and Cornwall.
The modern system of Celtic tree divination was established by poet Robert Graves in his book The White Goddess (1948). Drawing on medieval Ogham manuscripts and Irish scholar Ruaidrí Ó Flaitheartaigh's Ogygia (1685), Graves devised a 13-month tree calendar.
Celtic Astrology, Mystic Luna, Elder Runes, Natal Chart, Aura Reading