Uchronia presents Le Grand Bouquet at the Grand Palais in Paris from September 11 to 20, 2026, creating a monumental floral installation inside the Rotonde d’Antin for Paris Design Week. Founded by Julien Sebban, the multidisciplinary design collective developed the project in direct response to the architecture and decorative vocabulary of the historic interior.
DESIGN
At the center of the rotunda, a large stylized flower rises from the floor and occupies the room as both sculpture and spatial intervention. Uchronia draws from the floral motif embedded in the existing mosaic, extending that detail upward through a series of luminous petals. Their circular arrangement follows the geometry of the room and directs attention toward the vaulted ceiling above.
The installation uses scale to reshape the visitor’s perception of the Rotonde d’Antin without separating the intervention from its architectural context. The oversized flower appears to grow directly from the existing interior, connecting floor, furniture and ceiling through one continuous composition. Light, color and reflective surfaces intensify the floral form while keeping the room’s historic details visible.
Uchronia developed Le Grand Bouquet around the idea of joy as a shared experience. Pink and sage green establish the main palette, joined by the warm yellow of FENIX Giallo Evora on the seating and tabletops arranged around the base of the central structure. The color introduces another layer to the composition while creating a direct relationship between the monumental flower and the furniture below.
The seating forms an important part of the installation. Instead of treating the work purely as an object to view from a distance, Uchronia places visitors directly within it. Circular areas around the flower provide space to sit, observe the structure from different angles and spend time inside the rotunda. This arrangement turns the installation into an environment that changes according to the presence and movement of visitors.
FENIX surfaces cover the seats and tabletops within these areas. The material’s matt finish, soft-touch quality and anti-fingerprint properties add a tactile component to the project. Visitors encounter the surface through direct contact, giving materiality a practical role within the installation rather than limiting it to visual effect.
The result connects architecture, furniture, material and sculpture within a single spatial composition. The central flower defines the installation from a distance, while the seating and surfaces shape the experience at human scale. Uchronia uses these different elements to create a temporary interior within the Rotonde d’Antin, one that responds closely to the proportions and ornamental details already present in the space.
Le Grand Bouquet remains on view through September 20 as part of Paris Design Week and the European Heritage Days. The installation also coincides with the reopening of the Grand Palais to the public following four years of restoration.
Design: Uchronia
Creative direction: Julien Sebban
Wrought-iron structure: Atelier François Pouenat
Surface colors: Chromatic® and Seigneurie®
Fabrics: Manufacture Prelle
Circular beds: Tréca Paris
Surfaces: FENIX®
Material sampling support: Material Bank
