Overview
- There is no single official date to assemble a Christmas tree, with timing shaped by local customs and personal preference.
- In 2025, Advent began on Sunday, November 30, a date many households use to start decorating for the season.
- In Argentina, many families traditionally set up the tree on December 8 in connection with the Feast of the Immaculate Conception, a national holiday.
- Regional practices also include decorating after U.S. Thanksgiving or around December 12 in communities devoted to Our Lady of Guadalupe.
- Decorations blend history and modern trends: baubles evolved from apples and candles from early trees gave way to electric lights in the 1880s, while today LED lighting, DIY table pieces and space‑saving deployable trees are popular, with many taking decorations down after Epiphany on January 6.