Double Flowering Horse Chestnut, Sterile Horse Chestnut

Aesculus hippocastanum Baumannii, also known as the Double Flowering Horse Chestnut or Sterile Horse Chestnut, was discovered in the 1820s as a sport of the common Horse Chestnut. Its double-flowered, sterile inflorescences and broad, spreading crown make it a striking and stately tree for streets, avenues and other large spaces.

It has large, dark green leaves made up of 5-7 leaflets and thrives in most free-draining soils in full sun or partial shade. It is suitable for both exposed and sheltered positions and is rated H7 for hardiness.

Although it has been susceptible to a number of debilitating pests and diseases since around 2005, its sterility means it does not produce conkers. This can make it particularly useful in public spaces where fruit drop may otherwise be a nuisance.

With a short, sturdy trunk and horizontal branching, the tree may require occasional pruning to maintain clearance for vehicles or pedestrians. It is best suited to large gardens and open spaces, with a mature spread of more than 8m. It can also be sensitive to deicing salts.

Mature height: 20m+

Common names

Double Flowering Horse Chestnut, Sterile Horse Chestnut

Height of tree

20m+

Soil type

Well drained, Will tolerate most soil types

Shape

Broad

Blossom Colour

White

Foliage Colour

Green

Looks good in

Spring

Location

Parkland

Genus

Aesculus