Why deadwood is a garden treasure

A log pile is one of the simplest and most rewarding wildlife features you can add to a UK garden. In a brookside landscape, where damp shade and natural debris already create a rich microclimate, it becomes even more valuable. Deadwood is not rubbish. As it slowly rots, it supports a staggering range of life, from fungi and beetles to frogs and hedgehogs. Unlike a tidy border or a manicured lawn, a log pile is a messy, generous gift to nature. It costs nothing if you already have prunings, and it asks almost nothing of you once built. The key is to site it thoughtfully and then leave it alone.

Choosing the right spot

Location is everything. A log pile in full sun will dry out and support fewer species. A pile in deep, permanent shade might stay too cold. The sweet spot is dappled shade or a spot that gets morning sun and afternoon shade. If you garden beside a brook, the banks and nearby damp ground are ideal. Frogs, toads and newts thrive in these conditions, and they will readily use a log pile as a daytime refuge. Keep it away from your house to avoid attracting rodents too close, and avoid low-lying spots that flood badly in winter, as logs can become waterlogged and anaerobic. A gentle slope or a raised bank is perfect.

• Place it near a hedge, wall or tree line for extra cover.
• Choose a level, well-drained spot that stays slightly damp.
• Leave at least a metre of clear space around it for access and wildlife movement.
• Keep it out of strong prevailing winds to prevent it drying out.
• If you have a brook, set it back from the water's edge so it does not erode the bank or block flow.

Building your pile

You do not need special skills or expensive materials. Gather untreated logs, branches and twigs from native trees such as oak, beech, ash, hawthorn or willow. Avoid treated timber, painted wood, or anything that has been varnished, as these can be toxic. Mix diameters: thick logs rot slowly and last for years, while thin branches break down quickly and provide instant cover. Lay the largest logs first, parallel to each other, then add a second layer at right angles. This criss-cross pattern creates gaps and tunnels. Add smaller branches, bark, dead leaves and a few stones. Do not compact it. Aim for a pile about a metre high and a metre wide, but any size helps. If you have a brookside, you can incorporate a few water-worn stones or a small pile of damp leaf litter nearby to encourage amphibians.

• Use a mix of log sizes and species.
• Leave the bark on.
• Add hollow stems or bamboo canes for solitary bees.
• Do not add grass clippings or kitchen waste, which can turn sour.
• Site the pile directly on soil or leaf litter, not on paving.

Who will move in?

The first arrivals are often beetles, woodlice and millipedes, which feed on the rotting wood. Fungi appear, breaking down the lignin and cellulose. Solitary bees and wasps may nest in sunny gaps. As the pile settles, frogs, toads and newts move in, especially in damp brookside gardens. Hedgehogs use log piles for hibernation and daytime naps. Slow worms and even grass snakes may bask on the warm top logs. Birds such as wrens and robins will forage among the crevices for insects. The pile becomes a mini ecosystem, and the longer it stays, the richer it becomes. Do not be alarmed by the occasional slug or woodlouse; they are all part of the food web.

Letting nature take its course

Once built, the best thing you can do is leave it alone. Resist the urge to tidy it, move it, or add chemical treatments. Rotting wood is a slow process. Over two to five years, the logs will soften and shrink, and the pile will settle. You can add new logs to the top as old ones decay, but do not disturb the base. If the pile becomes too dry in summer, water it gently during a drought, especially if it is in a sunny spot. In a brookside garden, natural dampness usually keeps it perfect. Avoid turning the pile, as this destroys the delicate microhabitats and can harm overwintering creatures. If you must move it, do so in late spring when wildlife is active, not in winter.

A few safety and brookside notes

Log piles are wonderful for wildlife, but a little care keeps everyone happy. In a brookside landscape, make sure your pile is stable and does not overhang the water, where it could collapse and cause a blockage. Keep it away from children's play areas if you are worried about unstable logs, or build it low and wide rather than tall and precarious. Watch for invasive species such as Himalayan balsam or Japanese knotweed nearby; do not add cuttings to the pile. Finally, check for hibernating hedgehogs before moving any logs in winter. With a thoughtful site and a hands-off approach, your log pile will become a thriving hub for insects, amphibians and small mammals, enriching your garden and the brookside beyond.