The Sweet Chestnut, or Castanea sativa, a symbol of strength and longevity, holds a central place in the temperate landscapes of southern Europe and Asia Minor. This remarkable tree, often referred to as the “bread tree,” can grow up to 30 metres tall and is striking for its sturdy, gnarled trunk, which can live for several centuries, or even a thousand years. Its widespread branches provide generous shade, making it an ideal spot to rest beneath its dense, vibrant foliage, composed of large, glossy, serrated leaves.
From June to July, the sweet chestnut bursts into bloom, producing long, pale yellow catkins. These flowers attract a wide variety of pollinating insects, particularly bees, which produce a highly prized honey known for its complex and slightly bitter flavours. Beyond its beauty, this tree plays a crucial role in local ecosystems. Its fruits, the chestnuts, are not only a valuable food source for humans but also sustain many animals, including squirrels and birds.
At the Au Bois Vert Botanical Garden, located in Ivato near Antananarivo, the Sweet Chestnut (Castanea sativa) holds a special place among the emblematic plant species. Its imposing presence and rich symbolism captivate visitors. Exploring the garden, you can admire this magnificent tree while taking advantage of the nearby facilities, such as the hotel, lodge, or restaurant. The integration of this tree into the botanical garden highlights Au Bois Vert’s commitment to biodiversity and the conservation of plants with multiple benefits.
Moreover, the sweet chestnut fits perfectly into an environment dedicated to ecological education. Visitors, whether nature enthusiasts or simply curious, have the opportunity to learn more about this majestic and highly useful tree. Indeed, Castanea sativa is far more than a decorative element; it serves as a bridge between history, ecology, and sustainable innovation.
Plant use
The chestnut tree has been valued for its many uses throughout the ages. Its edible fruits, chestnuts, have been an important food source for centuries. Rich in carbohydrates, fibre, and vitamins, they can be enjoyed roasted, boiled, or ground into flour for baking bread and desserts. In some regions, they have long served as a substitute for cereals during times of scarcity. Beyond its fruit, chestnut wood is highly prized. Renowned for its natural durability and resistance to the elements, it is widely used in furniture-making, barrel production, and timber framing. In gardening and landscaping, it is commonly used for fencing and stakes. Moreover, the tree’s bark and leaves possess recognised medicinal properties. In herbal medicine, they are used to alleviate inflammation and support blood circulation. At the botanical garden in Ivato, the chestnut tree serves as an inspiration for promoting sustainable agriculture and making the most of local resources. It highlights the importance of preserving biodiversity while exploring practical and eco-friendly solutions suited to modern times. Visitors, whether staying at the Au Bois Vert hotel or lodge, can learn about its many uses through workshops and guided tours.
Key information
| Common name | Sweet Chestnut |
| Scientific name | Castanea sativa |
| Origin | Southern Europe, Asia Minor |
| Natural habitat | Temperate forests, well-drained soils |
| Life cycle | Perennial, lasting several centuries |
| Flowering period | June to July |
