Why Small City Gardens Punch Above Their Weight

A courtyard, a balcony or a pocket-sized back garden in the middle of town can be a genuine lifeline for bees. Cities are often warmer than the surrounding countryside, and that extra heat means flowers open earlier in spring and keep going later into autumn. For a queen emerging from hibernation in March, or a worker stocking up before winter, a well-planted small garden is a service station in a landscape that is otherwise short of fuel.

The good news is that you do not need an acre. A handful of generously planted pots, a window box and a couple of climbers can supply nectar and pollen for months. What matters is choosing the right flowers, planting them closely enough that bees can move easily between them, and keeping the whole thing going from the first warm day to the last.

Choose Open-Faced Flowers

Bees need to reach the nectar, and they cannot always do it. Any flower with tightly packed petals — the fancy double dahlias, the ruffled begonias, the pom-pom chrysanthemums — hides its nectar behind a wall of petal. Many of these are also sterile, offering pollen as well as nectar of no value at all. They may look splendid, but they are decoration, not food.

What you want instead are open-faced, single flowers with a visible centre where the stamens and stigma sit proud. Think of the daisy family and the mint family in particular. These are easy for a bee to land on, easy to work, and generous with what they offer.

• Cosmos — single varieties such as 'Purity' flower from July until the first frost. Sow direct in May, or start in pots.
• Lavender — the backbone of any bee-friendly scheme. 'Hidcote' and 'Munstead' are compact and reliable.
• Borage — a single plant can be smothered in bees. It self-seeds freely, so plant it once.
• Calendula — cheap seed, quick to flower, and useful right through autumn.
• Salvia — Salvia nemorosa types repeat-flower if you cut them back after the first flush.
• Echinacea — the cones are a late-summer favourite, and the seedheads feed birds in winter.
• Oregano, thyme and chives — herbs belong in the border, not just the kitchen pot. Let a few run to flower.

A Planting Plan That Runs from Spring to Autumn

The commonest mistake in a small garden is everything flowering at once in July. Bees need a continuous supply, so stagger your planting deliberately. Aim for at least three or four things in flower at any one time, and swap the cast as the season turns.

• March to May: wallflowers, forget-me-nots, pulmonaria, flowering currant, hellebores.
• May to June: alliums, chives, hardy geraniums, comfrey, foxgloves.
• June to August: lavender, cosmos, borage, calendula, verbena, single dahlias.
• August to October: sedum, asters, echinacea, rudbeckia, and the second flush of salvia.

If you grow only one thing, make it lavender. If you grow three, add cosmos and borage. That trio alone will carry a small garden through the warmer half of the year.

Growing Nectar in Pots and Tiny Borders

Containers dry out fast, and a thirsty plant stops producing nectar. Use the largest pots you can accommodate — 30cm across or more — because a bigger volume of compost holds moisture far better than a small one. Terracotta looks lovely but wicks water away, so line it or choose glazed pots instead. Group pots together: it shades the compost, slows evaporation and creates a denser patch of flowers that bees can find and revisit.

For lavender and thyme, use a gritty, free-draining mix — two parts multipurpose compost to one part horticultural grit. For cosmos and calendula, ordinary compost with a slow-release fertiliser is fine. Feed containers fortnightly with a tomato feed once buds appear; do not overfeed, or you will get lush leaves and few flowers. Water in the morning so the compost is damp when bees are active, and never let plants wilt to the point of collapse.

In beds, plant densely. Bare soil between plants dries out, encourages weeds and gives bees nothing. A covering of gravel or compost mulch keeps moisture in and looks tidy in a small space.

Water, Shelter and Somewhere to Nest

Flowers are only half the job. Most of our wild bees are solitary, nesting in holes, hollow stems and patches of bare ground rather than in a hive. Leave a small area of undisturbed soil in a sunny corner, and keep a few hollow stems standing over winter instead of cutting everything to the ground in October.

A shallow dish of water with pebbles or corks in it gives bees somewhere to drink without drowning. Place it near the flowers and top it up every couple of days. And please, put the sprays away — even the organic ones. A garden that is generous with flowers, stingy with chemicals and a little bit untidy in the corners will support far more life than a perfectly manicured one.

Keeping the Feast Going

Deadhead cosmos and calendula every few days through summer — this alone can double their flowering period. Cut lavender back lightly after its first flush to encourage a second, but leave the harder pruning until spring. Resist the urge to tidy sedums and echinacea in autumn; their seedheads look good frosted and provide shelter through the cold months.

Finally, watch what actually visits. Sit out with a cup of tea in late morning and note which flowers the bees favour. Every garden has its own microclimate, and the plants that work in yours may differ from the ones that work down the road. Plant more of whatever earns its keep, and your small city garden will quietly become one of the best-stocked larders on the street.