Category: Holiday Día del Árbol (MX) 2015 September 4, 2014 By Trees Group Día del Árbol (MX) 2015 All Day July 9, 2015 Mexico celebrates Día del Árbol, also known as National Tree Day, on the 2nd Thursday of July. It was established in Mexico in 1959. MexicoMap iCal Google Calendar View full calendar