When Is Arbor Day 2025. 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. Arbor day in 2025 is on friday, april 25 (fourth friday of april).
Read about arbor day around the world in 2025. What better way to celebrate arbor day than to plant your very own tree?