Screen First, Plan Second

A small garden becomes a retreat the moment it stops feeling overlooked. In a courtyard, a balcony or a narrow strip behind a terrace, enclosure does more for your mood than any cushion or planter. Before you buy anything else, work out from which directions you can be seen — the kitchen window, a neighbour's upstairs landing, the pavement beyond the gate — and set about closing off two or three of them.

You don't need a full hedge. A reed or willow hurdle fixed to a low wall, a slim trellis on battens, or a tight row of tall containers will do the job in a space only two or three metres wide. Aim for roughly 1.2 to 1.5 metres of screening — high enough that you can't be spotted from a sitting position on the far side. Do bear in mind that boundary structures over two metres generally need planning permission in the UK, so measure before you go taller.

Enclose three sides if you can. A seating area with a wall behind you, a screen to one side and a planter in front feels remarkably private, even when the whole thing is a metre and a half square. That sense of being held is what your shoulders register before your eyes do.

Choose Scent Over Show

Fragrant plants do the heavy lifting in tight spaces, because scent simply doesn't care about square footage. It fills a small area in a way it never quite manages in a large garden, and it is the sense most strongly tied to memory — precisely what you want from somewhere you return to in order to unwind.

• Rosemary and thyme beside the chair, where you'll brush past them and release the oils as you sit down.
• Lemon verbena in a pot within arm's reach; a single leaf is enough to scent the whole corner on a warm evening.
• Mint always in a container, sunk into the border or stood on paving, unless you want it everywhere by August.
• Scented pelargoniums, especially the peppermint and rose varieties, which are forgiving and flower for months.
• Lavender in a gravel-topped pot, which keeps the roots dry and the plant compact.

Raise a few of these to knee or waist height on an upturned pot or a small plinth. Bending down to smell something is a chore; brushing past it is a pleasure you get for free, several times a day.

Light in Layers, Never Floodlights

Bright garden lighting flattens a space and makes it feel like a supermarket car park. What you want is one warm pool of light around the seating area and a couple of dimmer points beyond it, so the eye has somewhere to travel. Warm white — around 2700K — reads as soothing; anything cooler looks clinical and keeps you alert.

Start with a single lantern on the table, then hide a short string of lights inside a shrub or along the back of the screen so you see the glow rather than the bulbs. A set on a timer is worth the extra few pounds purely because it comes on without you having to think about it.

• Keep light low and close to surfaces: steps, the tabletop, the base of a pot.
• Uplight one shrub or small tree to give the boundary a sense of depth.
• Use a candle in a storm lantern for a moving, faintly unreliable flame that no LED imitates.
• Leave a stretch of the garden genuinely dark. The absence of light makes a small plot read as larger, and gives you somewhere to look when you lift your eyes from your mug.

Make It Somewhere You'd Actually Sit

Retreats fail on comfort far more often than on style. A bench you perch on for two minutes is furniture; a chair you sink into is a place. In a corner of roughly 1.5 by 1.5 metres, two stacking chairs and a small side table will fit comfortably if you set them diagonally rather than square to the walls — angles use awkward space far better than right angles do.

Keep a waterproof box nearby for cushions so you never have to carry them in and out, and a wool blanket in it for the shoulder seasons. Underfoot matters too: gravel, decking or a couple of thick pavers make a corner feel intentional, and anything soft or warm under your feet lets the rest of you relax. Finally, face the seat towards something worth looking at — a bird bath, one good pot, or a gap in the planting that frames a view. Looking at a single thing calms the mind more reliably than scanning a busy border.

Add Sound, Movement and Ten Quiet Minutes

Sound masks the things you can't screen out. A small water bowl with a gentle trickle, a few tall grasses in pots that move in the lightest breeze, and one wind chime — one, not five — will soften traffic and neighbours' conversations without demanding attention. A shallow tray of water on the ground and a feeder nearby bring birds in, and their visits will do more for your mood than any ornament.

Then treat the space as somewhere you go, rather than somewhere you walk past. Anchor it to something you already do: take your first coffee outside, leave your phone on the kitchen sill, and give it ten minutes. Notice three things each time, and by the end of a season you'll have an accidental record of the garden — what's flowered, what's faded, what the light does in late September.

Keep a small watering can by the door so tending takes seconds. In autumn and winter, move a lantern and a thermos out there and the retreat keeps working. Slow travel is not really about distance; it is about staying put long enough to notice, and a tiny garden you use daily will teach you that faster than a fortnight anywhere else.