Walk past any medieval church on a summer's evening and you might notice something unusual: the grass is long, the headstones are speckled with lichen, and the air hums with insects. These quiet corners of the British landscape are among our most precious wildlife habitats, often richer in species than the surrounding farmland or parkland. Understanding why they matter — and how to care for them — is one of the simplest ways to support British biodiversity.

A Sanctuary Older Than the Nature Reserves

Churchyards have been left relatively undisturbed for centuries. While fields have been ploughed, drained and sprayed, the land around a parish church has often remained unimproved. No fertiliser has been spread, no deep ploughing has occurred, and the soil has been left to develop its own character. The result is a patchwork of habitats — ancient grassland, old trees, stone walls, damp corners and shaded burial plots — that wildlife has quietly colonised over hundreds of years.

In some cases, a churchyard's unimproved grassland is the last remaining fragment of a meadow type that once covered the parish. That makes it botanically important far beyond its size.

Ancient Trees and the Wildlife They Shelter

Many churchyards contain yews, oaks, limes and sycamores that predate the church itself. A mature yew can live for over a thousand years, its hollow trunk and dense canopy offering a remarkable range of microhabitats.

• Bats roost in hollow trees and beneath loose bark, using churchyards as feeding grounds. Pipistrelles, brown long-eared bats and noctules all hunt insects along tree lines and among headstones.
• Deadwood beetles rely on decaying heartwood. Species such as the stag beetle and the lesser stag beetle depend on veteran trees in the south of England.
• Lichens and mosses coat bark and stone, with some churchyard lichens being indicators of ancient woodland continuity.
• Birds nest in cavities, while owls and kestrels hunt from perches in the canopy. Tawny owls frequently call from churchyard trees at dusk.

Even a single ancient tree can support hundreds of species, from fungi in the roots to insects in the crown.

Why Unmown Grass Matters

If you see a churchyard with long grass and a mown path around the graves, you are looking at deliberate management for wildlife. Unmown grass allows wildflowers to set seed and complete their lifecycles.

• Cowslips, ox-eye daisies and knapweed flourish in churchyard grassland, providing nectar for bees, butterflies and moths.
• Common spotted orchids and other orchids appear where soil fertility is low — exactly the conditions churchyards preserve.
• Caterpillars of meadow butterflies, including the meadow brown and small skipper, feed on grasses left to grow tall.
• Field voles and shrews use long grass for cover, which in turn supports barn owls and kestrels.

A mown path keeps the churchyard accessible for visitors while leaving the rest to nature. This approach, recommended by many county wildlife trusts, is both practical and effective.

The Hidden World of Stone and Crevice

Headstones, walls and church masonry are not just memorials; they are habitats. The porous surface of limestone and sandstone supports a succession of lichens, mosses and ferns that can take decades to establish. Some churchyards are nationally important for their lichen communities, with species that are rare elsewhere.

Stone crevices also shelter:

• Solitary bees and wasps that nest in mortar joints and soft stone.
• Slow worms and common lizards, which bask on warm stone and shelter beneath graves.
• Spiders, beetles and woodlice in the damp, dark spaces between stones.
• Bats, which use the church tower and roof voids as roosts — churches are among the most important bat roosts in Britain.

Even the churchyard wall, with its mix of stone and mortar, can be a wildlife corridor linking the churchyard to neighbouring gardens and hedgerows.

Practical Ways to Help

Caring for a churchyard's wildlife does not require expertise, just a little patience and planning. If you are involved with a church or a friends group, consider these steps:

• Leave some grass long through spring and summer, mowing paths only where needed. Cut once in late summer and remove the cuttings to keep fertility low.
• Protect veteran trees by avoiding compaction of roots, and leave deadwood in place where it is safe to do so.
• Avoid chemicals — no herbicides, pesticides or artificial fertiliser.
• Survey before you change anything. A simple record of wildflowers, birds and insects over a season can guide management and provide valuable data.
• Keep records of bats and their roosts, and seek advice before any work on towers, roofs or timber.
• Encourage gentle access so people can enjoy the space while wildlife continues to thrive.

A Living Heritage Worth Keeping

Churchyards are places of memory and mourning, but they are also living landscapes. The same quiet that makes them sacred to people makes them safe for wildlife. A medieval yew, a cluster of cowslips, a pipistrelle at dusk — these are not separate from our heritage; they are part of it.

By treating churchyards as both sanctuaries and habitats, we can ensure that the wildlife found in these ancient places continues to thrive for generations to come. Next time you pass a churchyard gate, look a little closer. The hum, the flutter and the scent of wildflowers are signs that something rare and valuable is still holding on.