Andalusia will be closed Monday, May 27 in observance of Memorial Day.


Andalusia is delighted to be awarded Level II accreditation by ArbNet and is now recognized in the Morton Register of Arboreta, a database of the world’s tree-focused public gardens. The ArbNet program is sponsored and coordinated by the Morton Arboretum in cooperation with the American Public Gardens Association and Botanic Gardens Conservation International.

It is the only global initiative to officially recognize arboreta based on a set of professional standards, including planning, governance, number of species, staff or volunteer support, education, and public programming, as well as tree science research and conservation.

Locus amoenus, meaning pleasant place, is a term dating back to the Greek philosopher, Homer. It generally refers to a landscape with shade trees, water, and grassy areas.

Andalusia, situated along the banks of the Delaware River, with its landscape dominated by large specimen shade trees on a lawn surrounding a Greek-Revival mansion, has chosen to use this Greek/ Latin concept as the guiding principle for its Landscape Collections Policy.

Though rooted in the English Landscape tradition, Andalusia is not meant to be an historic landscape. Its gardens and grounds have continuously evolved since the late 18th Century. We believe the areas surrounding our historic national landmark building should serve to enhance our visitor’s experience, providing a place of beauty and serenity for all to enjoy. Therefore our plants are collected based on their ornamental value and whether they contribute to the sense of peace and enjoyment that we have carefully curated for our visitors.

Click the link below to view a public database of Andalusia’s arboretum. Of the more than 800 trees listed, almost 50% are labeled in the field, and that number will rise over time.

Special Arbor Day Event

Friday, April 26, 2024

Join us for guided tree tours on Arbor Day at 11:00am and 2:00pm. These tours are led by knowledgeable experts who will provide insights into the arboretum’s diverse range of trees, which includes 250 different specimens and cultivars from around the world. 


Historic House

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The Gardens

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See the Beauty of The


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