When is Arbor Day This Year?

National Arbor Day is celebrated on the last Friday of April, so this year Arbor Day was on April 24th, 2009. You should note that some states observe Arbor Day on different dates, e.g. while Pennsylvania observes on the same day as National Arbor Day, South Carolina observes the State Arbor Day on the first Friday in December. To find more information click here: