Start with the Shade You Actually Have

Before you buy a single plant, spend a week watching the corner you want to transform. Shade is not one thing. The dappled shade cast by a mature oak is a different world from the deep, dry gloom under a leylandii hedge or the damp shadow on the north side of a fence. Woodland gardening works when you match the planting to the conditions, rather than fighting them.

Check two things in particular. First, soil moisture: dig a spade-depth hole and see whether it is dust-dry, pleasantly crumbly or sticky and wet. Second, root competition. If your shady corner sits under an established tree, the soil will be dry and hungry because the tree roots are taking everything. Both problems are solvable, but they need different answers.

• Dry shade under trees: add a generous mulch of leaf mould and plant tough natives such as holly, yew and male fern.
• Damp shade near a wall or in a hollow: ferns, wild garlic and primroses will revel in it.
• Deep shade all day: accept a quieter palette of foliage and bulbs rather than chasing flowers.

Build a Canopy – Small Native Trees

A glade needs a sense of enclosure, and that comes from trees. You do not need a wood; three or four well-chosen small natives will do the work of twenty. Plant bare-root between November and March, when the ground is workable and the trees are dormant, and they will establish far better than potted stock.

Good choices for a modest garden include hazel (Corylus avellana), which coppices happily and gives you catkins in February; field maple, tolerant of most soils and lovely in autumn; rowan, with its creamy spring blossom and scarlet berries; and crab apple, which feeds birds well into winter. For evergreen structure, holly and yew are hard to beat in shade, though yew is slow and demands patience.

Space them at least three metres apart and think about the shapes they will make. A staggered arrangement, with the tallest at the back and a gap at the front, creates the "clearing" feeling you are after. If you already have a big tree, simply underplant beneath its outer branches where the light is better, and leave the darkest zone in the middle for ferns and leaf litter.

The Understorey: Shrubs That Tolerate Gloom

Between the trees and the ground lies the layer that gives a glade its depth. Stick to natives where you can, because they will settle in without fuss and support wildlife while they do it.

• Guelder rose (Viburnum opulus) – lacy white flowers, translucent red berries, superb autumn colour.
• Spindle (Euonymus europaeus) – extraordinary pink and orange autumn foliage and curious fruiting capsules.
• Dogwood – green stems in summer, brilliant colour in winter if you cut a few stems back each spring.
• Hazel – keep it coppiced to stool height for a dense, twiggy screen that shelters birds.

Plant these in loose groups rather than a single row. A woodland edge is uneven, with plants drifting into one another, and copying that irregularity is what makes a small garden read as natural rather than municipal.

Ferns and Foliage: The Ground Layer's Backbone

Flowers in shade are fleeting; foliage lasts from March to November. Ferns are the workhorses of a woodland glade and there are natives for almost every situation. Male fern (Dryopteris filix-mas) is tough, semi-evergreen and handles dry shade better than most. Soft shield fern makes a soft shuttlecock of fronds and looks wonderful with light behind it. Hart's tongue fern wants a damp wall or a shady corner with moisture, and its glossy, strap-like fronds are a fine contrast to lacy neighbours.

Underplant ferns with wood anemone, Solomon's seal, wood sorrel and clumps of bugle, which will knit together into a green carpet within two or three seasons. Add a mulch of leaf mould each autumn – about five centimetres, kept clear of stems – and the whole area will hold moisture and feed itself.

Bulbs: The Spring Show That Comes Free

Bulbs are how you cheat. They flower before the trees leaf up, when light is plentiful, then vanish underground for the rest of the year. Plant them in drifts of twenty or more, never in neat lines, and let them naturalise.

• Snowdrops – plant "in the green" in February or March for the best success rate.
• Native daffodil (Narcissus pseudonarcissus) – smaller and more delicate than garden varieties.
• Wood anemone – spreads slowly into sheets of white, given time.
• Bluebells – use native Hyacinthoides non-scripta, not Spanish bluebells, and never dig them from the wild.
• Winter aconite – cheerful yellow buttons in January, ideal at the foot of a tree.

Plant at roughly three times the bulb's own depth, add a handful of grit beneath each if your soil is heavy, and resist the urge to tidy the dying foliage – it is feeding next year's flowers.

Finishing the Glade

A clearing feels like a clearing because you can walk into it. A gently curving path of bark chip or stepping stones, a log stump to sit on, and a few ferns spilling over the edges will do more for atmosphere than any amount of extra planting. Let fallen leaves lie where they drop, allow a little moss to gather on stones, and be patient: woodland plantings look thin for two years and then suddenly fill out. Leave the tidying until late spring, after the bulbs have finished and the insects have emerged, and you will have a corner that feels far older than it is.