A coastal courtyard can feel like the worst place in Britain to garden: wind that funnels between walls, salt that scorches leaves, and a narrow strip of sun that moves across the paving like a searchlight. Yet the same enclosure that creates the problem can solve it. With a sensible arrangement of walls, screens, containers and heat-storing surfaces, you can turn a small seaside yard into a calm, warm pocket where plants that would sulk out in the open will grow happily.
Start by reading the wind, not the forecast
Before buying anything, spend a few days in the yard. Go out in the morning, at midday and during a blow. Note which corner catches the sun first, where the wind hits hardest, and which surfaces stay wet longest. A ribbon tied to a cane will show you the gusts better than any app. You will probably find that the wind does not come from one direction. It curls around buildings, drops over the roof and accelerates through any gap. A narrow opening between a shed and a wall can be more damaging than an open corner, because the air speeds up as it squeezes through.
Mark the sheltered zone with a few empty pots, then watch how the sun moves across it. In a courtyard, a south-facing wall may be warm enough for rosemary and figs, while the north side stays damp and cool. Treat those two areas as different gardens. They will need different plants, different watering and different winter protection.
Make the boundary work harder
Walls are your best asset. A solid wall on the sunny side stores warmth through the day and releases it slowly after sunset, taking the edge off a cool evening and the first light frost. A wall on the windward side needs more care: wind hits it and tumbles over, creating eddies. Rather than pressing pots right against it, leave a gap of a few centimetres for airflow and plant a buffer in front.
Height and porosity
Aim for a barrier that is roughly half porous rather than completely solid. Slatted fences, trellis and woven hurdles slow wind down; solid panels stop it but create turbulence on the sheltered side. As a rule of thumb, a screen protects a distance downwind about five to ten times its height. In a small yard, even a 1.2-metre screen can calm the seating area and the first row of pots.
Screens, fences and temporary barriers
Choose according to whether you need year-round shelter or just a summer screen:
- Slatted fence panels are sturdy and let some air through. Fix them to strong posts and leave a small gap at the bottom so wind does not push from underneath.
- Willow or hazel hurdles look good against stone or brick and are excellent for filtering wind. They last longest if raised slightly off the ground.
- Reed or bamboo screens are light and cheap, but they need a frame. Use them on a balcony or between posts rather than as a freestanding fence.
- Trellis with climbers becomes more effective each year. Evergreen climbers such as ivy or Trachelospermum give winter cover, though they need tying in on exposed sites.
- Roll-up canvas windbreaks are useful around a table or a row of pots in summer. Take them down before a gale.
Whatever you choose, anchor it properly. Coastal gusts test fixings, so set posts deep, brace corners and check ties after storms. A screen that rattles itself loose in November is worse than no screen at all.
Containers as a movable microclimate
In a compact yard, pots are not just decoration. They are tools. Group them together and they create a pocket of still, humid air that suits herbs, ferns and small shrubs. Raise them onto feet so water drains freely and air circulates under the base. Terracotta dries out faster but breathes; glazed or plastic pots hold moisture longer, which is useful in a windy, drying spot. For long-term plants, use a loam-based compost rather than a light multipurpose mix, which collapses and dries out in summer.
In winter, move tender pots under the eaves or against the house wall. Keep saucers in summer to conserve water, but empty them in winter so roots do not sit in cold, sodden compost. If a pot is too heavy to move, wrap it in hessian or bubble wrap and raise it onto bricks so it is not standing in a puddle.
Thermal mass: the quiet heat store
Thermal mass is simply material that absorbs heat during the day and gives it back at night. Your courtyard already has some: brick walls, stone paving, concrete. Add to it where you can.
- Leave a sunny paved area uncovered. Decking is comfortable underfoot but stores very little heat.
- Use stone or brick edging around borders. It warms up quickly and shelters low plants.
- Place a dark water butt against a sunny wall. Water stores heat well and is useful for rinsing salt off leaves.
- Mulch with gravel or shell grit. It warms the soil surface, reduces evaporation and stops rain splashing mud onto foliage.
- Add a cold frame or cloche against a south-facing wall. It is a miniature greenhouse for cuttings, salads and tender herbs.
Planting the sheltered pocket
Once the wind is broken and the warmth stored, plant in layers. Evergreen shrubs give year-round structure and filter salt; perennials and herbs fill the gaps. Good coastal candidates include Escallonia, Griselinia, Elaeagnus, rosemary, lavender, sea thrift, hardy fuchsia and sedum. In pots, try bay, thyme, sage and a fig fan-trained against a wall. Keep tender exotics such as citrus in containers so they can be moved into a porch or conservatory for winter.
Plant in autumn where you can, so roots establish before the dry, windy spring. Mulch with gravel or shell grit to reduce evaporation and keep leaves clean. After a storm, a gentle rinse with fresh water will remove salt from evergreen leaves. Do this on a mild day, not in a hard frost.
Winter protection and storm days
Fleece, cloches and bubble wrap are useful, but they work best in combination with shelter. Do not wrap plants so tightly that they sweat. Check drainage instead: in a coastal yard, winter waterlogging kills more plants than cold. Raise pots, add grit to heavy borders and avoid walking on wet soil. A plant with cold, wet roots is far more vulnerable than one that is simply cold.
A simple plan for a small yard
- Watch the wind and sun for a week, and mark the calmest, warmest corner.
- Erect a permeable screen on the windward side, leaving a gap at the base.
- Group your pots, raise them onto feet and move tender plants under cover for winter.
- Add thermal mass: paving, stone edging, a water butt, a cold frame.
- Plant in layers, starting with evergreens, then fill with herbs and perennials.
A courtyard does not need to be large to be generous. Work with the walls you have, slow the wind rather than trying to stop it, and let brick, stone and water do the quiet work of holding warmth. The result is a garden that feels several degrees kinder than the street outside, and plants that reward you for it.
