Hedgehog Hibernation Welfare and Winter Care for Garden Hedgehogs

European hedgehogs face multiple threats during hibernation, and understanding the welfare needs of hedgehogs entering and exiting torpor helps garden supporters provide appropriate assistance.

Key Facts

Hedgehogs hibernate between November and March in the UK, though warm winters are disrupting traditional hibernation timing
Hedgehogs need to weigh at least 450 grams before winter to survive hibernation; underweight animals may die from energy depletion
Hedgehogs that wake from hibernation during mild spells do not necessarily need intervention but must be able to find food
Garden hazards including bonfires, garden netting, and strimmers are significant causes of hedgehog injury and death
UK hedgehog populations have declined by over 50 percent since the 1950s, making garden support increasingly important

Welfare Considerations

Hedgehogs entering hibernation in inadequate body condition face a welfare emergency: their metabolic reserves run out before spring arrives, causing death from starvation. Early intervention for underweight autumn hedgehogs dramatically improves survival. The disruption of natural hibernation timing by climate change creates additional welfare risks as hedgehogs emerge from torpor into weather conditions and food availability that do not match their seasonal expectations. Garden management that maintains hedgehog access, provides supplementary feeding in autumn, and removes hazards before bonfire night and strimming operations significantly reduces preventable hedgehog suffering and supports population recovery.

What You Can Do

Check bonfires immediately before lighting for sheltering hedgehogs during autumn and winter
Provide supplementary food in autumn for hedgehogs that appear underweight before hibernation
Leave a section of garden wild with leaf litter and log piles to provide natural hibernation habitat
Check with your local hedgehog rescue for guidance if you find a hedgehog out in cold daylight hours
Create hedgehog highways by making 13 cm gaps in garden fences to maintain territorial connectivity