The Botanical Diary
H
Ornamental

Horse Chestnut

Aesculus hippocastanum
Also known ashorse chestnut, conker tree

The Horse Chestnut is a symbol of Kyiv, depicted on the city's coat of arms since the 19th century.

Regions
all regions
Colour
white з рожевим
Horse Chestnut (horse chestnut, conker tree)
🌸
Bloom
May–June
☀️
Light
Full sun
💧
Watering
Moderate
📏
Height
15–25 m
❄️
Hardiness
Zone 4а

Horse Chestnut is one of Europe's most beloved ornamental trees, having travelled to the continent from the Balkans in the sixteenth century. Gardeners adore it for its enormous pinnate leaves and unforgettable flower "candles" that rise above the crown in May. This tree immediately commands attention with its monumentality and annual spectacle of blooms—dense pyramids of white or pink flowers with crimson blotches never fail to captivate.

The variability of Horse Chestnut makes it a universal choice for diverse gardens. The classic form with white flowers remains most popular, but there are enchanting cultivars with pink or double blooms, each creating its own garden character—from traditional urban parks to romantic cottage gardens. The vigorous crown, spreading generously outward, provides wonderful shade on scorching days.

In the garden, Horse Chestnut holds its own alongside birch, maple, and rowan—a trio of classical companions that beautifully complement its architecture. The tree is undemanding in care: young specimens benefit from regular watering, and established trees thrive in sunlight. Horse Chestnut holds a special place in Ukrainian culture as the symbol of Kyiv, featured on the city's coat of arms since the nineteenth century. If you seek a tree that will grace your garden for decades without demanding much attention, Horse Chestnut is an excellent choice—one that gifts you an annual spring celebration and the tranquility of summer shade.

Location & soil

Horse Chestnut — planting & location

LightFull sun
Soil typeСуглинок, рН 6–7,5
Planting timeOctober або April
Plant spacing6–8 m
Planting depthAt root collar level

Symbol of Kyiv, decorative foliage and flower 'candles'

Water needs

How to water Horse Chestnut

IntensityModerate
FrequencyMay–August (молоді)
Volume20–25
MethodПід крону

Water young plants frequently

Annual care

Fertilizing and pruning: Horse Chestnut

Spring fertilizingNitrogen (April, for young plants)
Summer fertilizingNo feeding required
Autumn fertilizingSuperphosphate (August)
Pruning timeНавесні (sanitary)
Pruning typeSanitary

Remove dead and diseased branches

Cold hardiness

Horse Chestnut — winter hardiness & care

Hardiness zoneZone 4а
Winter coverNot required
Cover timing
Plant protection

Diseases and pests of Horse Chestnut

Diseases
Мінує каштана (Cameraria ohridella)
Pests
Мінуюча міль
Garden design

What grows well with Horse Chestnut?

Береза, клен, горобина