The 13 Celtic Tree Signs

The Ogham tree calendar — thirteen lunar months, each governed by a sacred tree whose ecology and mythology become a lens for birth sign and seasonal energy.

13 articles

Each tree in the Celtic calendar carries a specific quality — pioneer, protector, connector, wisdom-keeper — rooted in the ecology and folklore of the British Isles.

All entries

  1. 01

    Birch — The Pioneer of the Celtic Tree Calendar

    Born December 24–January 20? Explore the Birch tree sign in Celtic astrology — Beith, the pioneer of the Ogham calendar. What it reveals about you.

  2. 02

    Rowan — The Bright Protector of the Celtic Tree Calendar

    Born January 21–February 17? Explore the Rowan tree sign in Celtic astrology — Luis, the bright protector, the quickener at midwinter's edge.

  3. 03

    Ash — The World-Spanning Connector of the Celtic Tree Calendar

    Born February 18–March 17? Explore the Ash tree sign in Celtic astrology — Nion, the world-tree, the connector between realms. What it reveals in The Whisper.

  4. 04

    Alder — The Foundation-Builder of the Celtic Tree Calendar

    Born March 18–April 14? Explore the Alder tree sign in Celtic astrology — Fearn, the foundation-builder, the bridge that bears weight. What it reveals.

  5. 05

    Willow — The Lunar Dreamer of the Celtic Tree Calendar

    Born April 15–May 12? Explore the Willow tree sign in Celtic astrology — Saille, the lunar dreamer, the flexible root. What it reveals in The Whisper.

  6. 06

    Hawthorn — The Fairy Threshold of the Celtic Tree Calendar

    Born May 13–June 9? Explore the Hawthorn tree sign in Celtic astrology — Huath, the fairy threshold, the beauty that carries thorns. The Whisper explains.

  7. 07

    Oak — The Solstice King of the Celtic Tree Calendar

    Born June 10–July 7? Explore the Oak tree sign in Celtic astrology — Duir, the king of the forest, the solstice threshold. What it reveals in The Whisper.

  8. 08

    Holly — The Evergreen Iron of the Celtic Tree Calendar

    Born July 8–August 4? Explore the Holly tree sign in Celtic astrology — Tinne, the evergreen iron, the waning year's steadfast presence. The Whisper explains.

  9. 09

    Hazel — The Concentrated Wisdom of the Celtic Tree Calendar

    Born August 5–September 1? Explore the Hazel tree sign in Celtic astrology — Coll, the wisdom tree, the salmon's secret. What it reveals in The Whisper.

  10. 10

    Vine — The Harvest Equinox of the Celtic Tree Calendar

    Born September 2–29? Explore the Vine tree sign — Muin, the autumn equinox, the winding path to abundance. What the Celtic Tree Calendar reveals.

  11. 11

    Ivy — The Spiral Persistence of the Celtic Tree Calendar

    Born September 30–October 27? Explore the Ivy tree sign — Gort, the spiral return, the evergreen that transforms what it covers. The Whisper explains.

  12. 12

    Reed — The Samhain Threshold of the Celtic Tree Calendar

    Born October 28–November 24? Explore the Reed tree sign — Ngetal, the Samhain channel, the hollow instrument of what cannot be said. The Whisper explains.

  13. 13

    Elder — The Crone Wisdom of the Celtic Tree Calendar

    Born November 25–December 23? Explore the Elder tree sign — Ruis, the crone's wisdom, the cycle's end. What the Celtic Tree Calendar reveals in The Whisper.