Harriet Pembroke
Read the space before you buy a single pot
A courtyard is a room with three walls and a lid of sky, and everything follows from how that sky behaves. Stand in it at three points in the day and note where the sun lands. A south- or west-facing courtyard may give six hours of direct light in June and almost none in December; a north-facing one may never dry out. Measure the usable footprint rather than the boundary — take off 45cm all round for planting and a 4m x 3m courtyard has a genuine living area nearer 3m x 2m.
Walls hold warmth and release it slowly, which is why a sheltered courtyard can feel two or three degrees warmer than the street. That microclimate lets you grow things that would sulk in the open, but poor air movement also means moss and fungal trouble. Note where water sits after rain. If a puddle lingers for an hour, solve the drainage before laying a single slab.
Plant in layers, not in a row
Small spaces need height and depth rather than width. Think in three tiers, and repeat the same two or three plants instead of collecting a dozen varieties — repetition is what makes a cramped space feel considered.
- Structure: a clipped ball of yew, box or Ilex crenata in a 40cm pot, or a small acer, to carry the courtyard through winter.
- Climbers: run horizontal wires 40–45cm apart and train star jasmine up a sunny wall, or Clematis armandii for evergreen cover. Tie both in for the first two seasons.
- Underplanting: ferns, heuchera, hakonechloa and hardy geraniums cope with shade and root competition from walls.
- Scent: sarcococca for winter, lavender or a bay tree for summer, all happy in pots.
Use the largest containers you can bear — a 30cm pot dries out in a day, while 45–50cm gives roots a buffer and looks more generous. Soil-based compost such as John Innes no. 2, crocks for drainage, and pots raised on feet. Group them tightly rather than spacing them evenly; clustered pots hold humidity and read as one scheme.
Choose seating that earns its footprint
Furniture either makes the room or strangles it. Allow 75–90cm of clear space in front of any chair so someone can push back without scraping a wall — that rule alone tells you how much seating the space will honestly take.
A built-in bench along one wall is often the best answer. Seat height 42–45cm, depth 45cm, built over storage for cushions and tools, and it costs almost no floor space. For loose furniture, a bistro table of 60–70cm diameter with two chairs, or folding stools that hang on a hook, work well. Powder-coated aluminium and teak take British weather without fuss, and slim frames look lighter than chunky timber. Cushions should live in a lidded waterproof box from October to March. Keep one clear 90cm route from the door to the far corner — if you have to sidestep a table every time you carry out a tray, the courtyard will stop being used.
Specify finishes that shrug off the weather
Courtyards are damp, sheltered and prone to green algae, so surfaces must be honest about what they are. Porcelain paving is the most forgiving: frost-resistant, low-absorption, and available in a 20mm thickness that can sit on a gravel base with no mortar. Clay pavers look warmer but need sealing, and should be laid with a fall of about 1:60 away from the house.
For timber, western red cedar, iroko or good pressure-treated softwood will outlast untreated pine several times over. Oil or stain it in spring, and stand joists on rubber pads rather than bare ground. Choose powder-coated metal over painted, and stainless steel fixings — ordinary screws rust and stain paving within a season. A weatherproof outdoor socket on an RCD will transform how you use the space.
Light it for the evening, not for floodlights
Warm white light around 2700K, placed low and aimed at surfaces, makes a courtyard feel like an extra room after dark. Uplight the wall behind a planter, add two or three spike spots in the borders, and string festoon bulbs on a tensioned wire if the span is under 5m. Avoid one bright light in the middle — it flattens everything and highlights every uneven surface.
Screening deserves the same care. Slatted panels or vertical battens give privacy without blocking light, and trellis with a climber softens a hard boundary wall. One well-placed mirror can double apparent depth; three start to look like a trick.
Keep it working through the year
A courtyard that shines in July and looks abandoned in January is not an extension of the home. Deadhead and water through summer, but plan the winter picture too: evergreen structure, a few pots of cyclamen or winter pansies by the door, and lights on a timer so the space is lit when you get home in the dark. Sweep and jet-wash paving in March, refresh the mulch on pots, and bring the cushions out once the frost risk has passed.
Do that, and the courtyard stops being a leftover patch of ground and becomes the room you drift into with a cup of tea, whatever the forecast.
