Art Climate Transition
Co-funded by the
Creative Europe Programme
of the European Union
Shared Activity

Urban Ecologies – Trees in the city

Summer Lab | Ljubljana


The Ljubljana Summer Lab is inspired by archiborescence, a concept that shaped the vegetal cities of the comic books designer and architect Luc Schuiten. It revolves around transforming cities into ecosystems, neighborhoods into forests and buildings into inhabited trees.

Archiborescence refers to some pertinent questions: How can we imagine urban landscapes by decentralizing our position and shift from extracting and colonizing forests into a mutual caring relationship? Or, more simply put: How can we, humans and more-than-humans, cohabit a city?

Ljubljana, 23 – 28 august 2021

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ACT SUmmer Lab - photo_Forensic Plant Lab ACT SUmmer Lab - photo_Forensic Plant Lab
Urban Ecologies – Trees in the city


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During the Summer Lab we would like to focus on our relation to trees in the city, trees that are not part of big parks and green areas, not supported by a community of other trees, but that are standing, sometimes forgotten or invisible, on squares, on the corners of streets… and are part of the daily life of other inhabitants.

The Summer Lab is an invitation to design a collective Tool Kit Zine, as an experiment to imagine how we can transform a city into an interconnected system where trees weave a new social system based on interconnectedness, kinship and symbiosis. How can we imagine a society from the perspective of trees, as a way to imagine impactful actions in tackling climate change? Our questions for the Summer Lab: How to inhabit the nature/culture-dichotomy by connecting to a tree? How do we, artists, imagine acts of care as a way to acknowledge our dependence on trees?

We would like to imagine this Summer Lab as a moving “table” that goes around in public space searching for trees in the city. Locations are decided in collaboration with the invited artists and guests. The locations are places where we can weave our mutual relation with trees.

During the lab, every participant will choose a tree as their ally. The final presentation of the Summer Lab will be a Fanzine, consisting of a map of the ally-trees and a toolkit on how a connection with trees can be shaped. We will walk an audience along the ‘ally’-trees and share our experiences.

Each artist will choose a tree in the city and imagine a protocol of tools to dialogue with trees – of being and living together- and relating to other trees in the city.

Every participant brings one book about trees – moving library – to introduce the relation of their work with the concept of trees.

The Summer lab is moderated by Gosie Vervloessem (the toxic detective) and Maria Lucia Cruz Correia (the guardian of nature).

Concept: Maria Lucia Cruz Correia & Gosie Vervloessem
Participating Artists: Azahara ubera Biedma (Kaaitheater – Belgium), Elena Štrok (Domino – Croatia), Filip Jovanovski (Lokomotiva – North Macedonia), Iveta Pole (NTIL – Latvia), Malaika Cunningham (ArtsAdmin – UK), Mathieu Charles (Theater Rotterdam – The Netherlands), Sinéad Hargan (ArtsAdmin – UK), Tery Žeželj (Bunker – Slovenia), Victor Remère (COAL – France)
ACT observant: Lua Vollard

Produced by: Bunker, Ljubljana & Forensic Plant Lab
Executive producer: Maja Vižin
Lab producer: Polona Vozel
Supported by: Evropska unija – Program Ustvarjalna Evropa, Kultura, ACT – Art, Climate, Transition
Partner: Botanični vrt Univerze v Ljubljani
Photo by: Forensic Plant Lab



DAY 0 / Monday, 23 August 2021


16.00 or 18.30 Tania El Khoury: Cultural Exchange Rate / ŠD Tabor, Tabor 13 / performance installation (optional, reservations mandatory in advance)

19.00 – 23.00 Informal drinks, dinner / Stara mestna elektrarna, Slomškova 18

20.00 – 21.00 Silke Huysmans & Hannes Dereere: Pleasant Island / PTL, Prijateljeva 2 / performance (optional, reservations mandatory in advance)

DAY 1 / Tuesday, 24 August 2021

9.30 Meeting point in front of hotel Park – walk to University Botanic Gardens

10.00 – 11.00 Introduction of Forensic plant lab and Summer lab / University Botanic Gardens

11.00 – 12.30 Participants’ presentation, their relation to trees, how it reflects in their artistic practices, their book

13.00 Lunch / University Botanic Gardens

14.00 Walking in Treetime / Ally-Tree

16.00 Foraging with Katja Rebolj

18.00 Cooking together

19.00 Dinner ritual

DAY 2 / Wednesday, 25 August 2021

10.00 – 11.00 On-line lecture by Luca Cinquemani – From natural networks to the Expanded Transpecies Common / ŠD Tabor, Tabor 13

11.00 – 18.00 Picnic outside Ljubljana – Ulovka / meeting point for bus ride in front of hotel Park

DAY 3 / Thursday, 26 August 2021

10.00 Meeting point in front of hotel Park – walk to Park Sveta Evrope

10.30 – 12.00 Lecture by Maja Simoneti – Urban trees / Park Sveta Evrope

13.00 Lunch / Stara mestna elektrarna, Slomškova 18

14.00 – 18.00 Participatory performance by Špela Petrič 

18.00 Walking in Treetime / Ally-Tree

19.00 Kangro, Ulfsak, Eepner: It stays as it is / AGRFT, Aškerčeva 5 / performance (optional, reservations mandatory in advance)

20.00 – 22.00 Dinner / Stara mestna elektrarna, Slomškova 18

DAY 4 / Friday, 27 August 2021

9.30 Meeting point in front of hotel Park – walk to Park Tivoli

10.00 Making the Fanzine / Park Tivoli

13.00 Lunch / Park Tivoli

14.00 Design the Walking in Treetime as a public moment

17.00 The guided tour of the trees of the participants (open for public) / Park Tivoli as starting point

20.00 – 22.00 Dinner / Stara mestna elektrarna, Slomškova 18

DAY 5 / Saturday, 28 August 2021


Urban Ecologies – Trees in the city


Urban Ecologies – Trees in the city


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