National Arbor Day 2025 Activities. Discover ideas on how to celebrate arbor day in your classroom. It contains a variety of different activities to offer people different options to.

National arbor day is always celebrated on the last friday in april, but many states observe arbor day on different dates based on the best tree planting times for their area. This year marks the 150th anniversary of arbor day, and we want all of you to get involved in the celebration!