Taltree Arboretum & Gardens, located south of U.S. 30 between Merrillville and Valparaiso, Indiana, is a 360-acre reserve of formal gardens, woodlands, wetlands, and prairies. Whether hiking the 3+ miles of trails or attending an outdoor concert or special event, visitors have enjoyed Taltreeās quiet beauty interspersed with friendly festivity since 1999. Themed displays include the Hitz Family Rose Garden, Native Plant Garden, Oak Islands, and the Taltree Railway Garden.