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