Wild Hedgehog Decline and Garden Habitat Support

Hedgehog populations have collapsed by around 50 percent since 2000 in the UK, and garden management changes offer a significant opportunity for individuals to contribute to hedgehog welfare and recovery.

Key Facts

UK hedgehog numbers have fallen from approximately 30 million in the 1950s to under 1 million today
Garden hedgehogs have declined by up to 30-75 percent in some survey areas since 2000
Hedgehog highways — 13cm gaps cut in garden fences and walls — allow movement between connected gardens
Hedgehogs travel up to 2 km per night to find food, mates, and hibernation sites — garden connectivity is essential
Log and leaf piles, compost heaps, and undisturbed corners provide hibernation and daytime shelter sites
Slug pellets containing metaldehyde were banned in the UK in 2022 — ferric phosphate pellets are much safer for hedgehogs

Welfare Considerations

Individual hedgehogs in fragmented, barrier-rich urban and suburban environments suffer from inability to access adequate foraging territory, mates, and hibernation sites. Gardens isolated by impenetrable fencing and walls effectively trap hedgehogs in insufficient territory or prevent access entirely. The accumulated effect of millions of managed gardens across Britain represents a major driver of hedgehog decline. Individual garden management decisions — cutting hedgehog highways, maintaining wild corners, providing supplementary food in autumn — have a genuine additive welfare and conservation impact when adopted at neighbourhood scale. The People's Trust for Endangered Species estimates that over 50 percent of UK hedgehog conservation potential lies within suburban and urban garden networks.

What You Can Do

Cut a 13cm gap in your garden fence or wall to create a hedgehog highway — coordinate with neighbours for maximum benefit
Create a log or leaf pile in a sheltered corner for daytime shelter and hibernation habitat
Supplement garden hedgehog diet with wet cat or dog food in autumn to support pre-hibernation weight gain
Register your hedgehog highway with the British Hedgehog Preservation Society's hedgehog street project