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How to Make a Hedgehog Highway UK

Step-by-step guide to making hedgehog highways. Covers fence holes, gravel boards, wall gaps, and connecting gardens across your street.

Small square hole cut at the base of a wooden garden fence panel marked with a hedgehog highway sign Wildlife
Hedgehogs travel 1-2 km each night but cannot climb garden fences or walls. A hedgehog highway is a 13 cm x 13 cm hole at the base of a fence or wall, roughly the size of a CD case. The Hedgehog Street campaign estimates that connecting just five gardens in a row doubles local hedgehog survival rates. Over 100,000 UK households have registered hedgehog highways since 2011.
Hole Size13cm x 13cm, size of a CD
Roaming Range1-2 km per night needed
Main BarrierGravel boards block movement
Build TimeUnder 30 minutes with basic tools

Key takeaways

  • A hedgehog highway is a 13 cm x 13 cm hole at the base of a fence or wall
  • Hedgehogs roam 1-2 km per night and need connected gardens to survive
  • Gravel boards are the biggest modern barrier to hedgehog movement
  • One highway takes under 30 minutes to make with basic tools
  • Connecting five gardens in a row doubles local hedgehog survival rates
  • Over 100,000 UK households have registered highways via Hedgehog Street
hedgehogs hedgehog highway wildlife garden fences garden wildlife

By Garden UK Editorial Team

Our team produces practical UK gardening guidance from source research, contributor records and established horticultural practice. Editorial standards are overseen by Matt W.

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