Situated in the southeast of the Argentine pampas, Grigadale Arboretum maintains documented collections of exotic tree species. The plantings were started in 1992 in the park of a new homestead, and took on botanical interest when a collection of Quercus was initiated. In 2016 the Arboretum joined the Argentina Botanical Garden Network (RAJB) and the following year was recognized as an accredited arboretum in the Morton Register of Arboreta, a database of the world’s arboreta and gardens dedicated to woody plants. It has been awarded a Level I Accreditation by The ArbNet Arboretum Accreditation Program and The Morton Arboretum.

The mission of the Arboretum is to showcase and preserve the biodiversity of trees by means of documented collections that are shared with the public through guided tours and illustrated catalogues on its website. The collection’s database is available on this site and on the PlantSearch page of the BGCI website (Botanic Gardens Conservation International). Every year, Oak Days take place at Grigadale Arboretum, featuring a guided tour of the Quercus collection.