Creating a Hedgehog Highway in Summer

Introduction
Hedgehogs are vital garden allies, devouring slugs and insects, yet their numbers are in decline across the UK. One of the biggest barriers they face is fragmented habitats—walled gardens and fences that block their nightly foraging routes. In summer, when hoglets emerge and parents forage intensively, establishing a hedgehog highway—a series of small access gaps linking neighbouring gardens—can make a life-saving difference. This guide walks you through why hedgehog highways matter, how to plan and create access points, providing food, water and shelter, avoiding hazards, and engaging your community to build a connected network of safe passage. By summer’s end, you’ll have a thriving hedgehog thoroughfare right in your backyard.

1. Understand Hedgehog Behaviour and Needs

Hedgehogs roam up to 1 km nightly in search of insects, slugs and worms. They require:

• Connectivity: Gaps (13×13 cm) under fences to maintain foraging routes.
• Shelter: Log piles, compost heaps and dense shrub cover for daytime retreats and breeding nests.
• Food & Water: Natural prey supplemented with cat-friendly meat-based food and shallow water dishes.
• Safety: Chemical-free zones, avoidance of netting and secure, dry nesting sites.

Knowing their habits helps you design highways that cater to both adults and vulnerable hoglets through the summer months.

2. Survey Your Boundaries and Plan Access Points

Begin by mapping your fence and wall layouts:

• Identify Obstacles: Solid panels, gravel boards and tight gates that block movement.
• Select Locations: Choose discreet spots near hedges or shrubs where hedgehogs already approach.
• Plan Holes: Mark 13×13 cm squares at ground level—ideal for hog access while remaining small enough to deter pets.
• Permission Check: Coordinate with neighbours or housing associations to gain consent before cutting.

A clear survey and plan ensure your highway is effective and agreed upon by all parties involved.

3. Create Safe Access Holes

Cutting through barriers requires care:

1. Tools & Materials: Use a jigsaw or reciprocating saw for wooden fences; in brick walls, insert preformed tunnel “hedgehog bricks.”
2. Edge Finishing: File or sand edges smooth to prevent injuries.
3. Reinforcement: Frame holes with scrap wood or brick liners to maintain structural integrity.
4. Camouflage: Surround gaps with low-growing plants (e.g., lavender) to integrate into the garden aesthetic and offer cover.

Properly installed access points become seamless entryways for hedgehogs without compromising garden security.

4. Provide Continuous Cover and Shelter

Once highways are in place, ensure hedgehogs feel safe traveling:

• Hedgehog Houses: Position waterproof, insulated nest boxes in shady, quiet locations.
• Log & Leaf Piles: Create compost heap–style refuges under hedges for foraging and nesting.
• Shrub Layers: Plant native hedgerow species (hawthorn, blackthorn) to offer thickets and berries.
• Garden Furniture: Leave old benches or pots inverted in corners to provide hidden retreats.

These microhabitats along the highway offer essential rest stops and brood sites for hoglets and adults.

5. Offer Food and Clean Water Stations

Supplement natural prey with safe garden feeding:

• Evening Feeding: Place cat-food dishes (unsalted meat-based) near access points at dusk when hogs feed.
• Water Dishes: Use shallow bowls with gently sloping sides; refill daily to prevent drying out.
• Avoid Milk & Bread: These can cause digestive issues—stick to hedgehog-specific or cat biscuits soaked in water if needed.
• Monitoring: Check nightly to ensure food is eaten by hedgehogs, not pests.

Regular feeding stations help nursing mothers and growing hoglets maintain body weight through summer.

6. Eliminate Hazards Along the Route

Safety is paramount for hedgehogs traveling through your garden:

• Chemical Ban: Discontinue slug pellets, pesticides and herbicides that can poison hogs.
• Netting & Litter: Remove loose garden netting and garden ties; these can entangle hedgehogs.
• Traps & Pits: Cover drains, secure compost aeration holes and fill deep holes or ponds with gentle escape ramps.
• Pet Protection: Keep dogs and cats supervised at night to reduce predation risk.

By systematically removing dangers, you create a truly safe corridor for hedgehogs.

7. Engage Neighbours and Build a Network

A single garden highway is useful, but a network is transformational:

• Community Meetings: Host a summer BBQ or informal walkaround to explain benefits and seek support.
• Shared Resources: Pool tools, bulk-order hedgehog bricks and share installation tips.
• Online Groups: Use local social media to map participating gardens and coordinate fence modifications.
• Street-Wide Surveys: Identify gaps between clusters of gardens to ensure continuous connectivity.

Collective effort stretches highways across entire streets, restoring hedgehog populations at scale.

8. Monitor and Maintain Your Highway

Regular checks keep pathways open and safe:

• Monthly Inspections: Ensure holes remain unobstructed by debris or stray mulch.
• Seasonal Adjustments: In autumn, widen access under leaf piles; in spring, check for wash-ins from rain.
• Health Monitoring: Note hedgehog visits via footprints in mud or camera traps; log sightings to track usage.
• Repair Damage: Re-sand edges, replace rotted wood liners and reinforce tunnels as needed.

Ongoing maintenance guarantees highways remain functional year-round, not just through summer.

9. Support Breeding and Juvenile Dispersal

Summer is peak breeding season—facilitate brood rearing and juvenile movement:

• Nesting Boxes: Provide multiple options spaced 20–30 m apart to prevent overcrowding.
• Minimal Disturbance: Avoid mowing or strimming close to known nesting areas until autumn.
• Hoglet Highways: Ensure access holes are located over grass rather than hard surfaces to protect young feet.
• Gradual Release: If rehousing injured hoglets, place boxes near shelter and food, letting mothers locate them.

Supporting safe dispersal helps young hedgehogs find new territories and reduces road mortality.

10. Combine Highways with Habitat Corridors

Integrate hedgehog highways into wider ecological networks:

• Wildlife Corridors: Connect with pollinator-friendly borders, bug hotels and bird feeders to create multi-species haven.
• Green Underpasses: If you live on a busy road, partner with councils to install under-road tunnels beneath driveways.
• Rain Garden Links: Use rain gardens as stepping stones rich in invertebrates for foraging.
• Edible Borders: Plant fruiting shrubs like blackcurrant and raspberry to attract hogs and other wildlife.

A holistic approach positions hedgehogs within a broader tapestry of garden biodiversity.

Conclusion
Creating a hedgehog highway this summer bridges fragmented gardens and gives spiny wanderers the freedom they desperately need. By surveying boundaries, installing secure access holes, providing shelter, food and water, removing hazards and engaging your neighbours, you build a life-saving network. Continued monitoring, seasonal maintenance and integration with wider habitat corridors ensure your highway remains a vital thoroughfare year-round. This summer, roll up your sleeves and become a hedgehog hero—your garden can be the link that helps these beloved creatures thrive across your neighbourhood.

Top 10 Questions & Answers

1. How big should hedgehog access holes be?
   Approximately 13×13 cm—large enough for hogs but too small for most pets.
2. Do I need my neighbour’s permission?
   Yes—always discuss planned holes and share benefits before cutting shared fences.
3. What should I feed hedgehogs?
   Meat-based cat or hedgehog food (unsalted), plus fresh water; avoid milk and bread.
4. Can hedgehogs climb garden walls?
   Hedgehogs are poor climbers; they need ground-level gaps to move freely.
5. How often should I check access points?
   Monthly—and after storms—to clear debris and ensure tunnels aren’t blocked.
6. Will foxes use hedgehog highways?
   Foxes may follow highways but usually travel faster; highways don’t increase predation risk.
7. Are hedgehog houses necessary?
   They provide safe nesting but aren’t essential if you have log piles and undisturbed areas.
8. Can I install highways in brick walls?
   Use preformed hedgehog bricks or sculpt small tunnels with a masonry drill and chisel.
9. How do I attract hoglets to visit?
   Provide plentiful food and low-profile access so mothers bring young safely through.
10. What hazards should I remove?
    Avoid chemicals, secure deep holes, remove netting and cover compost aeration gaps.