The Associação Portuguesa dos Jardins Históricos (Portuguese Association of Historic Gardens) is a nonprofit organization dedicated to the study, defense, preservation, and promotion of Portugal’s historic garden heritage. It connects people with gardens across the country through regional routes, searchable garden listings, and an online route-planning simulator. Visitors can explore destinations such as the Azores route and discover individual sites including Parque Terra Nostra and Jardim Pitoresco in Ponta Delgada.

The association supports public engagement and professional learning through activities that include conferences, courses, educational trips, and visits. It also provides technical support and documentation related to historic gardens, helping advance knowledge and care of these cultural landscapes. Its work includes maintaining a garden inventory and developing projects and partnerships, alongside collaboration with members and social entities. Through its website, the association shares information about gardens, routes, activities, and related articles, and invites people to participate in its events and subscribe to its newsletter.