Sweet chestnut (Castanea sativa): what the forestry bodies record

This page reports what forestry bodies say about one tree. It does not identify trees from descriptions or photos and does not say what should be done with any tree. Each fact names its source, all read on October 9, 2026. The regulated status of sweet chestnut blight is on the sweet chestnut blight page and is not repeated here.

At a glance

Item	What the source records
Scientific name and family	Castanea sativa, family Fagaceae, the same family as oaks and beeches (Woodland Trust)
Origin	Non-native in Britain (Woodland Trust). Forest Research files it as Sweet chestnut with the code SC and calls it a Principal tree species.
Height and age	Up to 35 m when mature and up to 700 years of life, with girths up to 2 m in diameter (Woodland Trust)
Rainfall, exposure, shade	Less than 1,500 mm of rain; not tolerant of exposure; a light demander (Forest Research key properties)
Area in Britain	Approximately 30,000 hectares, about 2 percent of woodland cover, mostly in the south of England (Forest Research)

Origin and range

Forest Research says sweet chestnut is native to southern Europe and the Mediterranean region, was introduced in Roman times according to its entry, and is now widespread on lighter soils in southern and central Britain. The Woodland Trust says the story of how it reached Britain is unclear: it has long been thought a Roman introduction, but science does not definitively back that up and it may be far more recent. EUFORGEN, the European forest genetic resources programme, says it is native to southern Europe, western Asia and North Africa with a discontinuous and scattered range, and that its origin is thought to be north-east Turkey or the Caucasus.

Site and soil

Forest Research says the species suits warmer, more continental parts of lowland Britain, generally 550 to 850 mm of rain a year and certainly under 1,500 mm, on medium to poor soils of fresh to slightly dry moisture status. It is not suited to alkaline or waterlogged soils and acid sandy loams are ideal. It calls the tree cold hardy, comparatively drought tolerant, but not tolerant of exposure. EUFORGEN says it prefers well-drained soils, over 600 mm of annual rain with no or short dry seasons, and temperate climates, while being highly adaptable. Its pollen can travel up to 100 km from the source tree.

Leaves, bark and nuts

The Woodland Trust describes grey-purple smooth bark that develops vertical fissures spiralling up the trunk. Leaves are 16 to 28 cm long, oblong, pointed, glossy, with serrated edges and about 20 pairs of prominent parallel veins. Long yellow catkins of mostly male flowers carry female flowers at the base. The red-brown nuts are wrapped in a green spiky case, and trees begin to bear fruit at around 25 years. It separates the tree from horse chestnut by the single long serrated leaves, against hand-shaped leaves with deeply divided lobes on horse chestnut, and by nuts that are smaller and in clusters.

Coppice, timber and wildlife

Forest Research says sweet chestnut was mainly managed as coppice in the past and can produce an attractive hard-wearing timber, with rotations of 10 to 20 years for coppice and 50 to 70 years for sawn timber. It gives a target diameter of 40 to 45 cm for timber trees because larger trees can suffer badly from shake, and average productivity of about 8 cubic metres per hectare per year. The Woodland Trust says the flowers are an important source of nectar and pollen for bees and other insects, red squirrels eat the nuts, and many micro-moths feed on the leaves and nuts.

Pests and diseases the sources name

Forest Research says sweet chestnut is susceptible to several root attacking Phytophthora species, mainly P. cinnamomi and P. cambivora. It names sweet chestnut blight, Cryphonectria parasitica, as an introduced disease causing bark cankers that girdle branches and stems and a serious problem in parts of Europe, and asks that suspected sightings in Great Britain be reported via TreeAlert. It also names Oriental chestnut gall wasp, Dryocosmus kuriphilus, as discovered in southern England, with the value of sweet chestnut as a timber and coppice species at risk if the pest became established. It asks that suspected sightings be reported to TreeAlert. See also Phytophthora root rots and the report a pest in the United Kingdom page.

Text on Forest Research is adapted from its tree species database entry and contains public sector information licensed under the Open Government Licence v3.0.