Heather and Ivan Morison, Journey des Barricades

Situations is an arts organisation dedicated to commissioning and producing compelling and imaginative new forms of public art.

For over a decade we have been supporting artists to make extraordinary ideas happen in unusual and surprising places, directly engaging in people’s lives and offering alternative ways in which to see, hear and connect to each other.

Venue Type:

Association or society, Artist studio or collective

Opening hours


Admission charges


Exhibition details are listed below, you may need to scroll down to see them all.
Hollow in production


  • 10 May 2016 — 1 June 2020 *on now

Entitled Hollow, the artwork is permanently sited in the historic Royal Fort Gardens in Bristol. The artwork was commissioned to mark the opening of the University of Bristol’s new Life Sciences building in the vicinity of the gardens and is produced by Bristol-based arts producers, Situations. The result of three years’ research and sourcing, the collection of tree species (one of the largest amassed in the UK to date) has been built through the generosity of arboretums, xylaria, herbaria and collectors world-wide. Over 10,000 unique tree species have been gathered from across the planet, from Yakushima, Japan to the White Mountains of California, with generous donations from the Herbario Nacional de México, Royal Botanic Gardens, Kew, Kyoto University, the Arnold Arboretum at Harvard and many more.

Spanning millions of years, Hollow is a miniature forest of all the world’s forests, telling the history of the planet through the immensity of tree specimens in microcosm. The exterior cluster structure reflects a forest canopy’s ecosystem, the forms of the Douglas Fir posts reflecting the varying heights of trees. The interior of Hollow tells the history of the planet through over 10,000 unique tree species, from petrified wood fossils of the earliest forests that emerged 390 million years ago to the most recent emergent species.

The Hollow website provides a virtual guide to the artwork and offers the opportunity to explore the history and origin of the 10,000 samples.

Suitable for

  • Family friendly


Royal Fort Gardens
Tyndall Avenue


It is FREE to visit Hollow. Hollow will be accessible during daylight hours. Capacity inside Hollow is limited and access is through a narrow opening, therefore visitors are advised to enter one or two people at a time.


Spike Island
133 Cumberland Road




0117 930 4282

All information is drawn from or provided by the venues themselves and every effort is made to ensure it is correct. Please remember to double check opening hours with the venue concerned before making a special visit.