The Fraxinus uhdei, commonly known as the Tropical Ash, is a majestic tree native to the subtropical regions of Central America, particularly Mexico. This species belongs to the Oleaceae family, renowned for its durable wood and its numerous ornamental and practical applications. In the Au Bois Vert botanical garden, near Ivato, the Tropical Ash stands out for its elegant form and remarkable adaptability to various climates, making it an essential feature for botany enthusiasts and visitors alike.
The Fraxinus uhdei, or Tropical Ash, can grow to a height of 25 to 30 metres when fully mature. Its straight, sturdy trunk, covered in grey bark, supports a dense canopy of bright green pinnate leaves. This characteristic makes it an excellent choice for providing shade in urban and rural environments, as well as in green spaces such as lodges and restaurants in tropical regions. The Tropical Ash typically flowers between March and May, producing subtle yet essential blossoms that play a crucial role in the species’ reproduction.
Its natural habitat includes well-drained soils and areas with moderate to high rainfall. It thrives at mid-range altitudes, although it can also adapt to lowland areas if the growing conditions are favourable. This ecological versatility makes it ideal for reforestation projects or landscape design, particularly in locations such as Antananarivo, where the Au Bois Vert botanical garden beautifully showcases its potential.
Plant use
The tropical ash tree is a highly versatile species. Its wood, known for being both lightweight and durable, is often used in the production of furniture, frameworks, and decorative elements. In rural areas, it is also valued as a high-quality firewood source. Thanks to its rapid growth and ability to adapt to different climates, it is a preferred species for reforestation, particularly in areas affected by deforestation or soil erosion. From an environmental perspective, the tropical ash tree plays a crucial role in water regulation and soil stabilisation. Its deep root system helps prevent erosion, while its dense foliage improves air quality by capturing dust particles and releasing oxygen. This makes it a valuable asset for both public and private green spaces, such as those found in the lodges and restaurants of Ivato. Lastly, its ornamental appeal makes it a popular choice for enhancing parks, botanical gardens, and private estates. In landscaping projects such as those carried out at Au Bois Vert, this tree helps create a serene and natural atmosphere, appreciated by both locals and visitors alike.
Key information
| Common name | Tropical Ash |
| Scientific name | Fraxinus uhdei |
| Origin | Mexico and Central America |
| Natural habitat | Subtropical forests, well-drained soils |
| Life cycle | Perennial |
| Flowering period | March to May |
