Why North-Facing Balconies Are Better Than You Think

If your balcony faces north, you have probably looked enviously at sun-drenched terraces and assumed that growing anything worthwhile is off the cards. Take heart. A north-facing balcony is not a problem to be solved but a microclimate to be understood — and once you work with it rather than against it, it becomes one of the most rewarding spots in a flat to garden.

The defining feature is soft, indirect light for most of the day, with perhaps a brief flush of early morning or late evening sun depending on your aspect. That means no scorching midday heat, slower moisture loss from compost, and ideal conditions for a whole family of plants that sulk in full sun: ferns, hostas, mint, wild garlic, most salad leaves, and dozens of shade-tolerant herbs. What you lose in tomatoes and lavender, you gain in lush, edible, architectural greenery that looks far more expensive than it costs.

Start With Lightweight Pots and a Sturdy Base

The single biggest constraint on a balcony is not light — it is weight. Flats, especially upper-floor ones, are not designed to carry the equivalent of a raised bed filled with heavy loam. Dry compost in a pot still weighs a surprising amount, and saturated compost weighs roughly twice as much again. Plan around this from the start.

• Choose fibre or resin pots over terracotta. They are a fraction of the weight, hold moisture well, and are far less likely to crack in a frost.
• Mix in perlite or horticultural grit. A blend of two parts multipurpose compost to one part perlite keeps the mix airy, drains freely, and shaves off weight.
• Aim for a minimum 25–30cm diameter for herbs and leafy greens. Anything smaller dries out too quickly in a breeze, which north-facing balconies often have in abundance.
• Use pot feet or a saucer layer. This lifts pots off the floor, prevents water staining on tiles, and stops roots sitting in a cold puddle over winter.

Check your lease or building rules before drilling into walls — many allow brackets but specify the fixings. Self-supporting options such as over-rail planters and freestanding shelves avoid the question entirely.

The Best Herbs, Ferns and Greens for Shade

Forget basil and rosemary; they will stretch, pale, and eventually give up. Instead, lean into plants that genuinely relish the light levels you have.

• Soft herbs: mint (keep it in its own pot — it runs), chives, parsley, chervil, coriander, and lovage. All happy in partial shade and generous croppers.
• Leafy greens: rocket, spinach, chard, land cress, mizuna, and pak choi. Sow little and often from March to August for a continuous cut-and-come-again supply.
• Ferns: hart's tongue, lady fern, and Japanese painted fern bring texture and movement, and cope beautifully with a north aspect.
• Shade-loving foliage: hostas, heuchera, tiarella, and wild garlic. Hostas need slug vigilance, but a gravel mulch helps no end.
• Edible extras: wild strawberries, alpine strawberries, and sorrel will all settle in happily.

Group plants by how thirsty they are. Ferns and hostas want consistently damp compost; Mediterranean herbs would rot in the same conditions, so keep the two zones separate.

Making the Most of a Small Footprint

On a balcony of a few square metres, the vertical plane is your friend. Walls, railings, and even the back of a door can all earn their keep.

• Wall planters fixed in a row take almost no floor space and are perfect for herbs and trailing foliage. Water them more often than floor pots — they dry out faster in the air.
• Over-rail troughs clip onto the balcony edge for salad leaves and nasturtiums, leaving your standing room clear.
• A small folding table does double duty: a potting bench in spring, a spot for a tray of seedlings, and somewhere to sit with a cup of tea once things fill out.
• Stackable or tiered shelves turn a single pot's footprint into three or four, and can be wheeled into a corner when you need the space back.

Keep a clear 60cm of walking space. A balcony you can actually stand in is a balcony you will use, and a garden you use is one you will keep watered.

Watering, Wind and Winter Care

Two forces dominate balcony growing: wind and evaporation. Wind dries compost, shreds soft leaves, and topples tall pots. Fix a simple windbreak — a slatted screen or a row of tough plants at the exposed edge — and you will halve your watering chores.

• Water in the morning where possible, so foliage dries before evening and mould is less likely.
• Check pots daily in summer by pushing a finger two knuckles into the compost. If it is dry at that depth, water until it runs out of the drainage holes.
• Mulch the surface with gravel or bark to slow evaporation and keep compost off the leaves of low growers.
• In winter, lift pots onto feet, move the most tender ferns against the wall, and stop feeding altogether until February.

A Seasonal Rhythm to Look Forward To

A north-facing balcony has its own calendar, and following it is half the pleasure. February and March are for sowing hardy salad leaves and chitting early potatoes in bags. April brings ferns unfurling and the first cut of chives. Summer is a soft green abundance of mint, parsley, and chard, with ferns at their lushest. Autumn is for planting wild garlic bulbs and heuchera, and for the last generous harvest of rocket before the light drops.

By winter, when most sunny balconies look bare and battered, yours will still have evergreen ferns, the architecture of empty seed heads, and the quiet satisfaction of a small, well-planned space that earns its keep all year round. Start with three pots, learn what your particular corner likes, and let it grow from there.