The moon as a guide to the saw
In traditional almanacs, choosing when to fell a tree was part of reading the natural calendar. The moon’s changing phases offered a visible schedule for work that otherwise depended on local experience and seasonal judgment. Some traditions favored cutting during the waning moon—the period from full moon toward new moon—on the reasoning that less sap would be rising through the tree.
That idea drew on a familiar comparison: the moon visibly moves ocean tides, so perhaps its changing pull also affected water in plants. The almanac turned that intuition into practical advice, linking a phase of the month with timber thought more likely to stay sound.
What actually determines whether timber lasts
A tree’s moisture content matters after felling, but rot develops when fungi can grow in damp wood. How the timber is handled—whether it is kept wet, allowed to dry, and protected from conditions that encourage decay—therefore has a direct bearing on its durability. Moon-phase timing, by contrast, is a traditional rule rather than an established way to prevent rot.
The prescription is still revealing: it shows how people once joined observation, seasonal work, and inherited belief in a single calendar. The moon did not just mark the month; in the almanac, it helped decide the day a tree became timber.
