This event is in the past.It took place on April 25, 2026 at Saint-Nazaire submarine base.
Arts & Crafts
Arts & CraftsSwap plants on the roof of a brutalist WWII submarine base turned experimental garden. Local associations share green know-how, composting workshops, and community spirit in the most unexpected setting.
community plant exchange
sustainable gardening
WWII submarine base
free family event
Tips
♿use the large ramp for roof access
🌱volunteer at regular workshops to try gardening on the base
Free
Troc-plantes
Ville Port
Arts & CraftsArts & CraftsSwap plants on the roof of a brutalist WWII submarine base turned experimental garden. Local associations share green know-how, composting workshops, and community spirit in the most unexpected setting.
community plant exchange
sustainable gardening
WWII submarine base
free family event
Tips
♿use the large ramp for roof access
🌱volunteer at regular workshops to try gardening on the base
Free
Make it an outing
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