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A wildlife feature that costs nothing but patience

On a smallholding, there is always a fallen branch, a pruned apple limb, or a few split logs that are too knotty for the stove. Rather than burning them or dragging them to the tip, consider building a dedicated log pile. It is one of the simplest, cheapest, and most rewarding wildlife projects you can undertake. A well-sited pile becomes a nursery, a larder, and a winter shelter for a surprising range of creatures, from ground beetles and centipedes to frogs, slow worms, and the wren that flits through your hedgerow. In return, the wood slowly breaks down, feeding the soil beneath and around it with a steady release of nutrients. For anyone keeping a few hens, a vegetable patch, or a small orchard, a log pile is a quiet ally.

Choose a damp, shaded corner

The single most important decision is where to put it. You want a spot that stays cool and moist for most of the year. A north-facing corner behind a shed, under the drip line of a mature hedge, or beside a pond or ditch is ideal. Avoid full sun and dry, exposed positions; the insects and amphibians you are trying to help need humidity. If the ground is very free-draining, dig a shallow trench or lay a few inches of soil and leaf mould before you start stacking. The pile should sit directly on the earth, not on a concrete slab or paving, so that beetles, worms, and frogs can move in from below. A gentle slope or a slight hollow is perfect, as it collects moisture without becoming waterlogged.

Use untreated wood of different sizes

The best log piles are a mix. Never use treated timber — tanalised, painted, or stained wood can leach chemicals and will not support the fungi and insects you want. Untreated native hardwoods such as oak, ash, beech, birch, and fruitwood are excellent. Softwoods like pine and spruce rot more quickly, which is fine, but they tend to be less durable. Aim for a range of diameters, from wrist-thick branches to logs as thick as your thigh. Smaller twigs and brash can be tucked into the gaps. If you have a supply of dead wood from hedgerow trimming or storm damage, so much the better. Leave the bark on. It harbours eggs, larvae, and fungi.

• Good: oak, ash, beech, birch, apple, pear, willow, hazel, and any dead wood from native trees or shrubs.
• Avoid: treated timber, MDF, plywood, painted or varnished wood, and anything with nails, screws, or plastic attached.
• Sizes: a mix of thick logs, medium branches, and small twigs. The variety creates different microclimates.

Stack it loosely, not tightly

Forget neatness. A log pile should be a bit of a jumble, with plenty of gaps and crevices. If you stack logs like firewood — tight and uniform — you create a dry, airless stack that few creatures can use. Instead, lay the largest logs first, parallel to each other, and then criss-cross the next layer at an angle. Leave spaces between them. Add smaller branches and twigs to fill the gaps, but do not cram them in. The aim is a structure with lots of nooks and crannies, where a frog can squeeze into a damp hollow and a beetle can hide from a blackbird. You can also partially bury some logs upright in the soil, which helps them stay damp and attracts wood-boring insects. A pile roughly a metre high and a metre or two wide is plenty for a smallholding. If you have more space, make two or three piles in different spots.

Who moves in, and when

Within weeks, you will start to see activity. Ground beetles, centipedes, millipedes, and woodlice are usually the first arrivals, drawn by the damp darkness. They break down the wood and feed the birds. Frogs and toads will use the pile as a summer refuge and a winter hibernation site, especially if it is near water. Slow worms — which are legless lizards, not snakes — love the warmth of a rotting log in the morning sun. Hedgehogs may nest in a larger pile, particularly if you add a layer of dry leaves on top. And then there are the birds. Wrens are the classic log pile bird, creeping through the gaps in search of spiders, beetles, and grubs. Robins, dunnocks, and blackbirds will also visit, flicking through the leaf litter at the base. In winter, a log pile can be the difference between life and death for a small bird on a cold night.

Let it rot, and feed the soil

A log pile is not a permanent monument. It is a slow-motion compost heap. As the wood decays, fungi, bacteria, and invertebrates turn it into a dark, crumbly matter that enriches the soil beneath. You do not need to do much. Do not disturb the pile between autumn and early spring, when amphibians and insects are hibernating. In summer, you can add a few more logs or branches if you have them, but avoid turning it over. If the pile becomes too dry, water it gently during a heatwave. Over three to five years, the original logs will shrink and soften. You can then leave the remains to finish rotting, or use the resulting compost around fruit bushes and perennials. Start a new pile nearby so that the wildlife has a continuous home. The nutrients you return to the soil — calcium, potassium, and a host of trace elements — are a free bonus for your garden and smallholding.