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 have cherished it for its enormous pinnate leaves and unforgettable 'candles' of flowers that tower above the crown in May. This tree immediately commands attention with its monumental presence and annual flowering spectacle—dense pyramids of white or pink flowers with crimson spots never fail to captivate.

The Horse Chestnut's variability makes it a versatile choice for diverse gardens. The classical form with white flowers remains the most popular, yet charming cultivars with pink or double-flowering blooms exist. Each specimen creates its own atmosphere—from traditional urban parks to romantic cottage gardens. The robust, spreading crown provides magnificent shade on scorching days.

In the garden, Horse Chestnut competes for attention with birch, maple and rowan—a collection of classic garden companions that beautifully complement its architecture. The tree is remarkably undemanding in its care: it requires only moderate watering when young and appreciates some sun. This tree holds a special place in Ukrainian culture as a symbol of Kyiv, featured on the city's coat of arms since the nineteenth century. If you seek a tree to adorn your garden for decades without demanding much attention, Horse Chestnut is an excellent choice that will gift you with annual spring celebrations and the peace of summer comfort.

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