The arboretum was begun in 1863 by botanist Gaston Allard (1838-1918) within the closerie Maulévrie, which was then his home.
The property was ceded to the city in 1960, and his former home now houses the Botany Department of the Museum of Natural Sciences of Angers.
Today the arboreum contains an excellent collection of trees: approximately 4,300 specimens represent 1,600 taxa, including 705 taxa of conifers and 50 of oaks, with notable specimens of Quercus variabilis, Pseudocydonia sinensis, and Tilia mongolica.
In 1980 the arboretum was augmented with a national collection of hydrangeas, which now contains approximately 750 taxa.
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