Plant Profile: Aesculus x arnoldiana

Arnold Buckeye, scientifically known as Aesculus x arnoldiana, is a hybrid of A. flavia and A. pavia that emerged naturally at the Arnold Arboretum in Cambridge, Massachusetts. The name derives from a Latin term for an edible acorn, while the "x" signifies its hybrid nature and its discovery at the arboretum. This medium-sized tree thrives in moist, well-drained soil but struggles in dry conditions. It can tolerate some shade and features a medium to coarse texture with a rounded, broad form and low branches. The tree showcases striking chestnut flowers that bloom at the tips of its branches and produces chestnut-like fruit in the fall. It is relatively resistant to pests and is suitable for use as a street tree, displaying vibrant autumn colors. The cultivar 'Autumn Splendor' is especially notable for its impressive fall foliage.