Planting a Small Courtyard Garden for Year-Round Interest

A Courtyard Is a Room Without a Ceiling

Most British courtyards are small, shaded by neighbouring walls and viewed from a kitchen window or a chair by the back door. Treat that space as you would a good overcoat: everything should earn its place, the details should be considered rather than abundant, and nothing should look tired by February. The aim is not a summer display that peaks in July and then collapses. It is a composition with bones — evergreen structure, sound containers, a rhythm of flowering and a clear place for a chair and a glass — that holds its shape all year.

Start by measuring. Note how much sun reaches the space and when, where the walls throw shadow, and which direction the wind arrives from. Spend a fortnight watching before you spend a penny.

Begin with the Bones: Layout and Proportion

A courtyard of four by five metres needs a plan of three elements, not thirty. Keep paths clear and generous — 60cm minimum, 90cm if you want two people to pass with a tray. Raise the planting on one side or in the corners to break the flatness, and leave a single clear rectangle of paving for a bistro table.

• Floor: pale stone, brick or gravel, laid with a change of level to give the illusion of depth.
• Walls: the boundaries are your backdrop, so train something evergreen along them rather than leaving bare render.
• Focal point: one container, one small tree or one piece of sculpture — resist the temptation to give every corner equal billing.

A mirror, well placed and framed simply, will double a narrow space and bounce light into the darkest corner.

Containers That Earn Their Keep

In a courtyard, pots do the work that borders would do in a larger garden, so quality matters more than quantity. Buy the largest pot you can comfortably accommodate, and if you can only afford a few, make them good ones: frost-proof terracotta, glazed stoneware or heavy-duty fibreclay. Plastic looks cheap by the third summer and cracks in a hard frost.

Size governs success. For a shrub or small tree, choose a container at least 45cm deep and 50cm across; anything smaller will dry out twice a day in August. Always check for drainage holes, stand pots on feet so water escapes freely, and use a soil-based compost such as John Innes No. 3 rather than a light multipurpose mix, which collapses and dries out.

• Top-dress with a 2cm layer of gravel to slow evaporation and deter vine weevil.
• Group pots rather than spacing them evenly — clusters hold humidity and look deliberately arranged.
• Use one repeated pot style and colour across the space; variety comes from the plants, not the crockery.

Layering the Planting: Canopy, Middle and Carpet

Think in three storeys. The canopy is a single small tree or large shrub in a generous pot: Acer palmatum 'Sango-kaku' for coral winter stems, a bay or olive for evergreen structure, or a potted Hydrangea paniculata for late-summer flower. One is enough; two will crowd the space.

The middle layer carries the year — evergreen shrubs such as Skimmia, Sarcococca confusa or Pittosporum tenuifolium 'Tom Thumb', underplanted with hellebores, epimedium and hardy ferns for shade. Add a scented climber on the wall: Trachelospermum jasminoides is evergreen, tolerant of a north wall and smells of summer evenings.

The carpet is where you can be prodigal. Bulbs are cheap, and a courtyard can be planted in layers — crocus and snowdrops first, then narcissi, then alliums rising through the perennials. Fill gaps with Hakonechloa macra, hardy geraniums and a scramble of Erinus or erigeron for lightness.

Winter Interest Is the Real Test

From November to March a courtyard is judged on evergreens, bark, berries and light. Aim for at least 60 per cent of your planting to be evergreen or semi-evergreen, and choose things that give more than one season: Sarcococca for glossy leaves and winter perfume, Skimmia 'Rubella' for red buds held through the coldest months, holly or Ilex crenata for a clipped, tailored outline.

Add structure with clipped box or yew in a square pot, and let a few stems of cornus or willow glow against a dark wall. Lighting transforms the space after four o'clock: warm-white LEDs, around 2700K, uplighting the canopy and a low glow along the path, will make the garden usable long after the light has gone.

A Light Touch Through the Seasons

The maintenance is modest but should be regular.

• March: top-dress pots with fresh compost, prune winter shrubs, feed with a slow-release fertiliser.
• June: water daily in dry spells, deadhead, tie in climbers, watch for vine weevil and aphids.
• October: plant spring bulbs in layers, lift and scrub pot feet, mulch, clear fallen leaves from gravel.

Half an hour a week is usually sufficient. A courtyard rewards attention like a well-kept wardrobe: buy well, layer thoughtfully, keep it tidy, and it will look composed in any month you happen to open the door.