How to Make Your Garden Hedgehog Friendly

There was a time when seeing a hedgehog in the garden was an ordinary thing. A brief flash of spines in the torchlight, the sound of snuffling through the flower beds, a small pile of droppings on the lawn in the morning. For most of us, that’s now a rarity rather than a regular occurrence. The European hedgehog was reclassified by the IUCN in October 2024 from Least Concern to Near Threatened — a formal acknowledgment of a population that has been shrinking for decades. In Britain alone, numbers have fallen from an estimated 30 million in the 1950s to fewer than 900,000 today, according to Hedgehog Street’s State of Britain’s Hedgehogs report. That’s a collapse of over 97% in less than a century.

The good news is that urban hedgehog populations have shown signs of stabilising in recent years — and gardens are a significant reason why. Creating a hedgehog friendly garden isn’t complicated, expensive, or particularly time-consuming. But it does require understanding what hedgehogs actually need, and being willing to do a few things differently.

The Hedgehog Highway: The First Step to a Hedgehog Friendly Garden

A hedgehog’s territory covers enormous ground. Wild hedgehogs roam up to 2km in a single night in search of food, shelter, and mates, according to the Royal Horticultural Society’s hedgehog-friendly gardening guide. In a neighbourhood of solid fences and closed walls, that journey becomes impossible. A hedgehog that can’t move between gardens can’t find enough food to build the fat reserves it needs for winter, can’t access mates during breeding season, and is effectively marooned in whatever patch of land it happens to be in.

The single most impactful change most garden owners can make is creating access points. A 13cm x 13cm gap at the base of a fence — roughly the size of a CD case — is enough for a hedgehog to pass through freely. Ark Wildlife’s hedgehog attraction guide describes this as a Hedgehog Highway, and the concept works best when neighbours participate together. Even one gap in every other fence along a row of gardens creates a connected corridor that gives hedgehogs meaningful access to foraging territory.

Cut the hole at ground level rather than elevated, and angle it slightly upward if the fence sits on a slope to prevent water pooling in the gap. If you’re renting or can’t modify fencing, lifting one corner of a fence panel slightly — just enough for a hedgehog to squeeze under — achieves the same result with less visible change.

Food: What to Leave Out and What to Avoid

A garden that attracts insects, slugs, and beetles provides everything a hedgehog needs to eat. But supplementary feeding can genuinely help, particularly during late autumn when hedgehogs are bulking up before hibernation, during dry summers when invertebrate populations drop, and in early spring when they emerge and food is still scarce.

What to offer: Fay Vass, chief executive of the British Hedgehog Preservation Society, quoted in Saga’s hedgehog garden guide, recommends good-quality meaty hedgehog food, meat-based wet cat or dog food, or cat biscuits as supplementary options. These replicate the animal protein that hedgehogs are built to process. Our guide on what hedgehogs eat covers the nutritional foundations in more detail.

What to absolutely avoid:

• Milk and bread — a common offering that causes serious digestive problems. Hedgehogs are lactose intolerant, and bread has no nutritional value for them. Despite being a long-standing tradition, both should be left out of it entirely.
• Mealworms — widely sold as hedgehog treats but actually harmful in anything beyond tiny amounts. Green Feathers’ hedgehog garden guide explains that mealworms are extremely high in phosphorus relative to calcium, which can cause metabolic bone disease over time. The same calcium-to-phosphorus imbalance we’ve discussed in our hedgehog food guides applies equally to wild hedgehogs.
• Fish-based cat food — most hedgehog charities advise against fish-flavoured wet food for wild hedgehogs as it’s not their natural diet. Meat-based is always the better choice.
• Anything salty, spiced, or processed — seasoned food, leftover human meals, or anything containing onion, garlic, or artificial preservatives should never be put out.

A small feeding station — a low-sided container or a purpose-built wooden box with an entry tunnel — concentrates the food in one place, protects it from rain, and keeps larger animals like cats and foxes from stealing it before the hedgehog arrives. Wildlife Online’s garden guide recommends placing food stations in quiet, sheltered spots rather than in the middle of open lawn.

Water: Shallow, Clean, and Always Available

Water is easy to overlook and genuinely critical. The RHS notes that hedgehogs get just as thirsty as birds but have a much harder time sourcing water, particularly in hot, dry weather. A shallow bowl of fresh water, refreshed daily and placed near the feeding area or a sheltered part of the garden, can make a real difference.

The word shallow matters here. Hedgehogs can and do drown in deep water sources — including ponds, water features, and swimming pools — because their climbing ability only goes so far. Our article on can hedgehogs swim covers this in detail: they can swim, but if there’s no way out, they exhaust themselves. Any pond in a hedgehog friendly garden should have at least one gently sloping edge, a partially submerged flat rock, or a small ramp to allow an exit. Even a brick placed in a bird bath gives a hedgehog something to push off from if it falls in.

Never leave milk out as a water substitute. It causes diarrhoea and does more harm than good.

Shelter and Nesting: What Hedgehogs Actually Use

Wild hedgehogs nest in two contexts: daily daytime resting during active months, and hibernation nests through winter (typically November to March in the UK). Both require a sheltered, insulated space with good coverage from above and a degree of concealment from predators.

Log piles are one of the most effective and low-effort additions to any wildlife garden. A pile of hardwood logs, left undisturbed in a quiet corner, quickly becomes a foraging site as insects, beetles, and invertebrates colonise the decaying wood — which is exactly the menu hedgehogs are looking for. It also provides a natural nesting option. Wildlife Online recommends asking local tree surgeons for logs, who will often donate them for free.

Leaf piles serve the same dual purpose — foraging habitat and nesting material. Hedgehogs pull dry leaves into their chosen sleeping site to build insulated nests, and a pile of undisturbed leaves in a quiet corner of the garden provides both the raw material and the habitat in one. Resist the temptation to tidy every leaf away in autumn — that impulse works against hedgehogs at exactly the time they need the most help.

Compost heaps are irresistible to hedgehogs. They’re warm, full of invertebrates, and feel naturally sheltered. The risk is that hedgehogs nesting in a compost heap can be injured during turning. Check thoroughly before putting any tools in, and go carefully around the base.

Hedgehog houses are the most predictable option if you want to know where your garden hedgehog is nesting. A purpose-built wooden hedgehog box, positioned in a quiet, sheltered spot facing away from prevailing winds and partially covered by vegetation, replicates the kind of protected hollow that hedgehogs seek out naturally. Our how to build a hedgehog house guide walks through the process if you’d rather make one yourself.

Place any shelter well away from where dogs or cats spend time, and away from heavily trafficked areas of the garden. Hedgehogs that feel observed or disturbed at their nest site will move on.

Wild Corners: Stop Tidying Everything

This is the piece of advice that costs nothing and delivers the most. A portion of lawn or border left unmown and unreaked becomes a functioning mini-habitat almost immediately. Tall grass shelters beetles and ground-dwelling insects. Fallen leaves harbour invertebrates. Nettles support caterpillars that feed birds that hedgehogs share territory with. A genuinely wild corner isn’t an eyesore — it’s the most productive square metre in your garden from a wildlife perspective.

Wildlife Online’s garden guide suggests restricting mowing and leaf-raking to a couple of times a year in at least one area, and letting whatever grows naturally do so. The No Mow May initiative championed by Plantlife is an accessible starting point for anyone who’s not ready to commit to a permanent wild corner.

Dangers to Remove or Modify

A garden that’s well set up for hedgehogs but full of hidden hazards will still cause harm. A few things to address:

Pesticides and slug pellets: These are among the most significant killers of garden hedgehogs. Slug pellets containing metaldehyde are toxic to hedgehogs directly if ingested, and even those labelled as wildlife-safe reduce the slug and beetle populations that hedgehogs depend on for food. The Southdowns National Park’s hedgehog guidance suggests coffee grounds as a slug deterrent that’s effective without poisoning the wider food chain.

Garden machinery: Strimmers and rotary mowers are a serious hazard to hedgehogs sheltering in long grass. Always check carefully before mowing or strimming, particularly in late summer and autumn when hedgehogs are more likely to be using long grass as daytime cover. Our article on hedgehog predators covers the full range of threats wild hedgehogs face, including human activity.

Netting and litter: Hedgehogs investigate everything with their noses and can become entangled in garden netting left on the ground, fine mesh, or litter. Keep netting elevated or rolled up when not in use, and clear any litter from wild corners regularly.

Bonfires: A pile of wood, leaves, and garden waste looks like a luxury hedgehog hotel. Before lighting any bonfire, either build it fresh on the day or take it completely apart and reassemble it just before lighting. Hedgehogs are quiet and stay very still when threatened — you will not hear one inside a bonfire pile.

Ponds: As noted above, any pond needs at least one gentle exit point. A sloping edge, a flat submerged rock, or a piece of chicken wire draped over one side all work.

Knowing When a Hedgehog Needs Help

A hedgehog out during the day is almost always in trouble. Wild hedgehogs are nocturnal and are rarely seen in daylight unless something is wrong — they’re injured, ill, underweight, or disoriented. Green Feathers advises using thick gloves to pick up any daytime hedgehog, placing it in a high-sided box lined with a towel, offering water and a small amount of meaty cat food, and contacting your nearest wildlife rescue or the British Hedgehog Preservation Society for advice.

Hoglets — baby hedgehogs — found alone are also a concern. A nest disturbed by garden work, a mother killed by a car, or young that have wandered too far from the nest will need professional help to survive. The BHPS operates a hedgehog rescue network and can direct you to local help quickly.

Conclusion

Making a hedgehog friendly garden doesn’t require a complete redesign or a significant investment of time or money. A gap in the fence, a bowl of water, a log pile in the corner, and a commitment to leaving some areas wild covers most of the ground. What it does require is a willingness to let go of the perfectly manicured garden ideal in favour of something a little messier — and considerably more alive.

Hedgehog populations are still in decline nationally, but urban gardens are one of the places where the trend is starting to reverse. Every connected, well-stocked garden is a piece of that recovery. If you want to take things further and learn more about hedgehog care, behaviour, and the best products for hedgehog owners, our best hedgehog products page is the place to start.