What Day Is Arbor Day 2025 Dates. Today, many countries observe such a. Arbor day soon spread to such other countries as japan, canada, australia, and colombia.celebrated rather as day of trees in colombia, this holiday is special to colombians.

Arbor day is observed in spring for the united states but globally dates vary depending on the region’s. It originated in nebraska city, neb., in the united states in 1872.