Start With an Honest Measure of Your Space

Before you buy a single pot, spend ten minutes on the balcony with a tape measure and a notepad. Note the overall width and depth, then measure the clear floor area once you have allowed for the swing of the door, the path to the washing line and any awkward drainpipes. A balcony that looks tiny in photographs is often workable once you know the real numbers. A depth of 1.2 metres, for example, comfortably takes a 70cm deep bistro table with chairs that tuck underneath, leaving a walkway along the wall.

Next, work out which way the balcony faces. A south-facing balcony in Manchester bakes in summer and dries out compost within a day, while a north-facing one in Bristol may only receive an hour or two of weak sun. This single fact determines almost everything else: which plants will thrive, how often you will water, and whether you need shade netting or a windbreak. Tall buildings create their own microclimates too, so check how the wind funnels between walls. If your balcony catches strong gusts, choose plants with flexible stems and invest in weighted feet for every container.

Go Up, Not Out, With Vertical Planters

The floor is your most precious resource, so treat the walls and railings as prime growing space. A simple trellis fixed to the wall with expanding bolts, or a railing-mounted frame that clamps on without drilling, can support climbing plants, pocket planters and small shelves. Vertical growing roughly triples your planting area without taking up a single extra centimetre of standing room.

• Wall-mounted troughs: choose narrow 15–20cm deep troughs for herbs, salad leaves and trailing lobelia, spacing them at eye level and above.
• Railing planters: purpose-made brackets hook over the top rail and hold a row of pots at waist height — ideal for tomatoes, chillies and strawberries.
• Pocket growing bags: felt or fabric wall planters suit herbs, violas and nasturtiums, and they are light enough for rendered walls.
• Shelving units: a slim three-tier metal or bamboo shelf against the back wall holds pots at three heights and keeps the floor clear.

Fix brackets into brick or concrete rather than into render or insulation, and check your lease or freehold agreement before drilling. If drilling is not allowed, tension poles that brace between floor and ceiling are surprisingly sturdy and hold several pots each.

Choose Furniture That Disappears When You Don't Need It

Folding furniture is the difference between a balcony you use and one you walk past. Look for a bistro table with a drop-leaf top, stackable or folding chairs that hang flat on a wall hook, and a bench whose seat lifts to store cushions, secateurs and a watering can. Powder-coated aluminium is light enough to move one-handed and will not rust in British rain, though it does feel cold in winter; teak and acacia fold-down sets are heavier but weather beautifully.

Think about height as well as footprint. A bar-height table with two stools takes the same floor area as a low set but gives you a better view over the railing — a real bonus if your outlook is a car park. Add a small side table that folds flat, or use a sturdy upturned crate topped with a cushion. Whatever you choose, measure the folded dimensions before buying and check it fits through your balcony door when open.

Plant for Height, Scent and Movement

On a small balcony, every plant should earn its place. Aim for a mix of an upright evergreen for structure, something scented near the seating, and trailing greenery to soften hard edges. A compact Japanese maple, a bay tree or a standard rosemary works well as the anchor in a 35–40cm pot, while lavender, jasmine and honeysuckle bring scent and pull in bees.

Trailing plants are the secret weapon of the small balcony. Ivy-leafed pelargoniums, trailing rosemary, Dichondra 'Silver Falls' and nasturtiums will spill over railings and down walls, drawing the eye outward and making the space feel larger. Underplant tall pots with low growers such as thyme, alpines or creeping sedum so no compost is left bare.

Use the same compost across most containers — a peat-free multipurpose with added grit for drainage — and group pots together. Clustering traps humidity, shades roots and cuts watering by roughly a third. Raise pots on feet so water drains freely and does not stain the balcony floor.

Solve Watering, Storage and Privacy Early

Balcony containers dry out fast, especially in wind. Fit a simple drip irrigation kit to an outdoor tap if you have one, or use self-watering reservoirs in the base of larger pots. A 10-litre watering can with a rose is easier to manage than a hose in a tight space, and a small collapsible bucket saves cupboard room.

• Storage: a slim waterproof bench box or a tall lidded stool holds tools, compost bags and cushions out of sight.
• Privacy: a roll of reed screening, a freestanding trellis with a climber, or a tall grass such as Miscanthus in a pot screens neighbouring windows without blocking light.
• Lighting: solar fairy lights along the railing or a rechargeable table lamp turn the balcony into an evening room.
• Flooring: interlocking deck tiles or an outdoor rug hide tired concrete and make the space feel intentional.

Keep a small trug for deadheading and a pair of snips within reach, and spend five minutes each week tidying. A compact balcony rewards routine far more than grand gestures. Start with three pots, one folding chair and a trellis, and let the space grow with you.