A north-facing border asks different questions of you. You are not chasing maximum flowers in full sun; you are choosing plants that like cool roots, still air and soil that stays damp well into June. Get that right and the border looks settled and generous for most of the year, while the sunny parts of the garden are still filling out in spring.
What a north-facing border is really like
North-facing is not the same as dark. On a north wall most light arrives in the morning or evening, and in midsummer a border facing north can still catch a few hours of low sun as it swings round from north-east to north-west. That is why the plants below are shade tolerant rather than shade loving: most will grow in deep shade, but they flower and bulk up better with a little light.
The other thing to know is that north borders hold moisture. Soil dries slowly, winter wet lingers, and the ground stays cooler than elsewhere in the garden. Frost can sit longer too. The consequences are practical: roots rot more easily in heavy clay, slugs and snails do well, and anything that resents wet feet in winter will sulk.
Shrubs to give the border structure
Evergreens earn their place in shade because they carry the border through winter when little else is happening. Put them in first, then fill the gaps.
Evergreen backbone
- Fatsia japonica — big, glossy, hand-shaped leaves that look tropical without needing sun. In a sheltered spot it shrugs off most UK winters.
- Sarcococca confusa (Christmas box) — plain green leaves, near-invisible flowers in midwinter and a scent you can smell from the path. Happy in dry shade under trees.
- Aucuba japonica — tough as old boots, and spotted forms such as 'Crotonifolia' brighten a dark corner. Trim it if it gets leggy.
- Skimmia japonica — neat domes of evergreen leaf, red buds through winter, and it flowers in shade. Males and females are separate; only females berry, and only if a male is nearby.
- Viburnum davidii — low, dense and useful at the front of a border, with metallic blue berries on female plants.
Shrubs that flower in shade
Mahonia x media 'Charity' gives spires of yellow flowers and scent in November and December, and tolerates a north wall. Hydrangea serrata and the lacecap hydrangeas cope with morning shade, though you get more flower with some sun. On acid soil, rhododendrons and pieris open up your options. For winter colour, cornus with red or orange stems will grow in shade, but the colour is stronger in sun.
Perennials that cope with cool, damp ground
This is where a shady border gets its texture, so mix foliage plants with flowering ones rather than relying on bloom alone.
- Hellebores — Helleborus x hybridus for winter flowers, H. foetidus for ferny evergreen foliage.
- Epimedium — delicate spring flowers, and new leaves tinted red before they green up.
- Brunnera macrophylla — forget-me-not flowers in spring, silvered leaves afterwards.
- Pulmonaria — spotted foliage and pink-and-blue flowers early in the year.
- Geranium macrorrhizum — one of the best weed-suppressing cover plants for dry shade, with scented leaves and magenta flowers in early summer.
- Astrantia — pincushion flowers in cream, pink or dark red on wiry stems.
- Ferns — Dryopteris erythrosora, Polystichum setiferum and Asplenium scolopendrium. They never look out of place and need almost no attention.
- Hakonechloa macra — a soft green cascade for the front of the border; best with a little light.
Avoid the plants that need baking: lavender, rosemary, most bearded irises, sedums and Mediterranean herbs. They may survive a year, then go thin and woody.
Climbers for a north-facing wall
North walls are usually the largest vertical surface you have, and they suit the handful of climbers that don't mind the cool. The best of them is Hydrangea anomala subsp. petiolaris, the climbing hydrangea: self-clinging, with lace-white flowers in early summer and good autumn colour. It is slow to start — expect little in the first two years — then it romps.
Other reliable choices include ivy for quick cover, Parthenocissus for fiery autumn colour, winter jasmine for yellow flowers on bare stems from January, Garrya elliptica for grey-green catkins, and the small alpina and macropetala clematis, which flower in spring and don't demand sun on their roots.
One warning about north house walls: the eaves keep rain off the soil at the base, so the ground can be bone dry even when the border a metre out is damp. Water new climbers properly for the first two seasons and mulch to hold moisture.
Low plants and bulbs to knit it together
Bulbs are the trick that makes a shady border feel alive in late winter. Snowdrops, Cyclamen coum, Anemone blanda and Erythronium all flower before the canopy thickens, and they will seed about if you leave them undisturbed. Daffodils will take some shade, though they flower best where they catch a little sun.
For bare ground, Pachysandra terminalis, Vinca minor, Lamium and Waldsteinia are workhorses that suppress weeds. Keep them away from small treasures you actually want to see.
Getting the planting right
- Improve the soil before you plant. Fork in two or three inches of garden compost or leaf mould across the whole bed, plus grit if the soil is heavy clay. Aim for soil that holds moisture but never sits waterlogged.
- Plant in spring or early autumn so roots settle before the wet and cold of winter.
- On heavy ground, plant slightly proud of the surrounding soil so water runs off the crown rather than into it. This matters most for hellebores, epimediums and anything alpine.
- Space plants properly. Shade encourages soft growth and fungal problems, so air moving between plants is worth more than a full look in year one.
- Mulch with leaf mould in autumn, keeping it clear of stems.
- Watch for slugs and snails in spring when new shoots are soft. A torch and a night check beat most deterrents.
- Use pale flowers, silver and variegated foliage to lift the light. White hellebores, brunnera's silvered leaves and lamium's white splash all do this.
Before you buy anything, spend a day watching where the light actually falls. A north border that looks gloomy in April may take three hours of evening sun in July, which changes what will flower well. Check it at midday and again at six in the evening; the difference is often surprising.
A planting plan you can copy
Start with three evergreens spaced along the back: sarcococca, fatsia and skimmia. Plant a climbing hydrangea against the wall behind them and let it find its own way up. In front, drift hellebores, epimedium and Geranium macrorrhizum in groups of three or five rather than as single plants, then edge with ferns and a run of pachysandra. Push snowdrops and cyclamen into any bare patches in autumn.
That combination gives you scent in January, flowers from February to June, fresh fern croziers in spring and evergreen structure in December — which is more than many sunny borders manage.
Photo: Nennieinszweidrei / Pixabay