The Celtic Tree Calendar, often used by modern Neopagans and Druid practitioners as a way (no pun intended) to connect with nature and olden Celtic spirituality, was inspired by Celtic and Druidic traditions. It’s primarily based on work of the poet Robert Graves, assigning a different tree to each of the thirteen lunar months, based on the Ogham alphabet, which was a medieval script used to write early Irish. Graves used letters of the Ogham to correspond to different trees, which he employed to develop the calendar. Modern pagans often use fixed dates for each of these lunar months instead of the waning and waxing selenic cycle to prevent this…