Hispanic Heritage Month Sept. 15-Oct. 15 National Hispanic Heritage Month traditionally honors the cultures and contributions of both Hispanic and Latino Americans as we celebrate heritage rooted in all Latin American countries. During this month and throughout the year, the National Park Service and our partners, share history, heritage, and accomplishments of Hispanic and Latino Americans of past and present. Join us for the 7th annual Dallas Arboretum Hispanic Heritage Celebration on September 14-15, 2024. This two day celebration will feature food, vendors, live music, cooking demonstrations and, of course, the Quinceañera Fashion Show.