Why Shade Is a Gift, Not a Problem

Most of us inherit at least one gloomy corner — the strip along a north-facing wall, the patch beneath a mature apple tree, or the damp hollow where the fence casts its shadow for most of the day. These spots are often written off as difficult. In truth, they are some of the most generous places in the garden for wildlife, because shade usually means cooler soil, slower evaporation and a longer flowering window than the sun-baked beds at the front.

The trick is to stop fighting the conditions and start choosing plants that evolved for them. A shaded border planted with the right natives and near-natives will feed bees, moths, frogs and hedgehogs far better than a sun-loving bedding scheme struggling to survive. Here is how to plan and plant one this season.

Read the Shade Before You Buy Anything

Shade comes in flavours, and the plants you choose depend entirely on which one you have.

• Dappled shade — the flickering light under a deciduous tree. Nearly anything woodland will thrive here.
• Deep dry shade — under conifers, dense hedges or a north wall with greedy roots. Tough going; stick with the hardiest ferns and hellebores.
• Damp shade — boggy soil that never quite dries out, often near a downpipe or at the bottom of a slope. This is the richest habitat of all, and the focus of this border.

Before planting, push a fork in and see how wet it really is. If water seeps into the hole, you have damp shade. If it is dusty and full of fine roots, you have dry shade and will need to improve the soil first with a generous mulch of leaf mould or well-rotted garden compost.

The Planting Palette: Ferns, Hellebores and Foxgloves

Three groups of plants will carry a shaded border from February right through to the first frosts.

Native ferns form the structural backbone. The soft shield fern (Polystichum setiferum) and the hardy male fern (Dryopteris filix-mas) both hold their fronds well into winter, giving cover for frogs, beetles and overwintering ladybirds. The hart's tongue fern (Asplenium scolopendrium) enjoys the dampest spots and looks superb against a damp brick wall. Plant them in drifts of three or five, not as lonely specimens.

Hellebores — particularly our native stinking hellebore (Helleborus foetidus) and the many garden hybrids — flower from January when almost nothing else is open. Early bumblebee queens emerging from hibernation rely on them utterly. Their nodding, dusky blooms also hold their shape for months and their seed heads stay architectural well into summer.

Foxgloves (Digitalis purpurea) are the border's summer fireworks. They are short-lived, so let them self-seed freely through the ferns and you will never need to buy them again. Their tubular flowers are built for long-tongued bumblebees, and the seeds that follow feed goldfinches in autumn.

Round things out with native wood anemone, wild garlic, sweet violet, bugle and a few clumps of primrose. Add a small patch of native sedge or wood rush for texture at the front edge.

Planting, Mulching and the First Year

Autumn is the ideal moment to plant a shaded border, while the soil is still warm and rain is doing the watering for you. Work in a barrow-load of leaf mould per square metre, then set plants slightly proud of the surface if drainage is poor, mounding soil around the crowns so water never sits on them.

Water newly planted ferns and hellebores through their first summer, even in shade — the roots are still establishing. After that, a thick mulch of composted bark or leaf mould each spring is all they need. Skip the fertiliser; rich, leafy growth in shade tends to flop.

Avoid laying weed-suppressing membrane. Frogs, beetles, slow worms and ground-foraging birds need access to the soil surface, and the whole point of this border is to be a habitat, not a display bed.

Leave the Seed Heads Standing

This is the single most valuable thing you can do for wildlife, and the easiest. Resist the urge to tidy in autumn. A border left standing through winter is a larder and a hotel combined.

• Foxglove and teasel seed heads feed goldfinches and siskins well into February.
• Hollow stems of hellebore, sedge and old fern stalks shelter overwintering solitary bees and lacewing larvae.
• Fallen leaves trapped between fern fronds give hibernation cover for frogs and newts.
• Seed heads catch frost and low winter sun, providing more visual interest than most summer flowers.

Hold back the secateurs until the worst frost has passed — generally late February to mid-March in most of the UK, later in the north. Then cut back in stages: take the tallest stems first, leaving lower growth and any green fern fronds intact until new growth pushes through in April.

Small Details That Make a Difference

Add a shallow dish of water at ground level among the ferns for frogs and hedgehogs, and leave a small log pile or stack of stones at one end of the border. Do not rake away every leaf — a thin layer of leaf litter is the best free mulch and a nursery for next year's insects.

Finally, be patient. A shaded wildlife border takes two or three seasons to settle, self-seed and knit together. By its third spring, when the hellebores are buzzing and the foxgloves are rising through the unfurling ferns, you will wonder why you ever wanted to fight the shade in the first place.