
Urban Tree Oracle: Tree of Heaven
Tree: Ailanthus / Tree of Heaven
Aspect: emergence
Season: summer
Sense: movement
Score for Ailanthus
As Ailanthus, stay rooted and yet cast far and wide
As Ailanthus, move through crack and crevice
As Ailanthus, angle and lean towards the light
As Ailanthus, float on the wind
As Ailanthus, find a new home
The Urban Tree Oracle: Ailanthus
with Matthew Battles
Tuesday August 12 6:30-8:00, 2025
Bussey Brook Meadow, Arnold Arboretum
Join us on Tuesday August 12 at the Arnold Arboretum for an evening of movement, drawing, and sounding with Ailanthus, otherwise known as Tree of Heaven. Ailanthus is all around us, flourishing in ruderal worlds usually considered hostile to life: along roads and railways, in sidewalk cement cracks, in abandoned urban lots. Their story is one of complex ecologies with multiple strands that reach into human sensory experience, geopolitical imagination, colonialism, urban decay and revitalization, and so much more.
ticket sales were donated to Arnoldia: The Nature of Trees, the quarterly publication of the Arnold Arboretum
We will gather with a large Ailanthus and a few babies in a weedy lot on the edge of the urban wild of Bussey Brook Meadow to participate in a collective somatic exercise with Ailanthus, exploring other ways of knowing and being with our more-than-human kin. Then we will process and reflect through drawing and writing with ink made from Ailanthus’ leaves. Finally we will reflect, translate and share our experiences through words and sounding.
Matthew Battles is a maker and thinker whose work merges literary, scholarly, and artistic forms of inquiry. The author of six books to date, his writing has appeared in such venues as The American Scholar, The Atlantic, Harper’s Magazine, and The New York Times. His most recent book, TREE, was published by Bloomsbury in 2017. With a far-flung network of collaborators, he has created films, installations, and experiences from Boston to Berlin. For Harvard’s Arnold Arboretum, he edits Arnoldia: the Nature of Trees, a magazine exploring the urgency of tree-entangled science, history and storytelling for our time, and he lectures in comparative media studies at the Massachusetts Institute of Technology.
Tree of Heaven
Ailanthus
Excerpt:
As a phytoacummulator, she can absorb pollutants such as sulphur and mercury, which makes her a valuable ally in reducing toxins. She flourishes in ruderal worlds usually considered hostile of life: along roads and railways, in sidewalk cement cracks, in abandoned urban lots. As our climate changes and our ecosystems become hotter or drier or simply different, she will be able to thrive when other trees will not.
She has become a powerful symbol for beings that can flourish in what seem like impossible circumstances and of immigrants being able to thrive in difficult circumstances. Her story is one of complex ecologies with multiple strands that reach into human sensory experience, a geopolitical imagination, racism, urban decay and revitalization, and so much more.
most of the photos below are by Mads Otis IG: @madsjphotography














