The city’s botanical gardens invite the public to explore their 28-hectare expanse, free of charge, all year long. Visitors can partake in informative guided tours to deepen their understanding of the botanical world, or engage in workshops and activities thoughtfully designed for children.
This practical course provides an introduction to seed saving and propagation for home gardeners. It explores how to choose easy heirloom and open-pollinated varieties, basic techniques for collecting, cleaning and storing seeds, and simple methods to maintain varietal traits. The session examines crop-specific tips for beans, tomatoes and salad greens, and addresses the ecological and food‑security benefits of seed autonomy, helping participants gain skills to produce and preserve seeds at home.
In French.
This workshop examines the traditional craft of preparing herbarium specimens to document and conserve biodiversity. It explains specimen selection, pressing, mounting and labeling techniques, and how herbarium collections support taxonomic research, ecological monitoring and conservation planning. Participants will gain practical understanding of standard methods, the scientific value of preserved specimens, and how meticulous specimen curation reveals long-term changes in species distribution and environmental conditions.
The work of an herbarium preparer deepens our knowledge of living organisms and supports their conservation. An herbarium functions as a library of biodiversity, housing preserved specimens that document species variation across time. This session examines the traditional techniques used to assemble and mount specimens, tracing methods that date back to the 16th century, and shows how contemporary preparators continue to enrich collections that serve research, taxonomy and conservation.
As part of the European Artistic Crafts Days.
In French.
Join a lively afternoon of storytelling, plant-themed games, puzzles and colouring inspired by biodiversity. Play in small groups or solo while exploring shapes, colours and textures of leaves and flowers. Listen to stories that bring gardens to life, try hands-on puzzles and fill bright pages with greens and blooms. Gentle movement games and curious questions spark imagination and nature curiosity, inviting kids to observe, play and create with plant friends.
In French.
This educational escape game explores botanical knowledge and historical research as players investigate a family’s old study to identify a plant described in a 1715 letter used to treat malaria. Participants examine clues, classify specimens, and apply basic pharmacological reasoning and observational skills to reconstruct how the plant’s compounds could combat disease. The session emphasizes taxonomy, analytical thinking, teamwork and the role of traditional botanical knowledge in medical discovery.
In French.
Explore prickly shapes and soft folds as you meet succulents and cacti. Look closely at spines, thick leaves and funny silhouettes, and discover how these plants store water. Take part in hands-on investigations with simple observations, drawing and gentle care tips. Hear the scratch of dry leaves, feel cool potting soil, and compare lookalike plants to understand what makes a cactus a cactus. Become a little succulent expert with a gardener’s help.
In French. Kids ages 6 and up.
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