There is a particular pleasure in stepping outside after dark and being met by a wave of scent — jasmine drifting across a patio, honeysuckle hanging over a doorway. But many of the best night-scented climbers need warmth, shelter and steady moisture, which makes a well-chosen container a genuinely practical option rather than a compromise. Get the pot and the support right and a single obelisk by the back door can scent a whole garden.

Why a container often beats a border

Night-scented climbers mostly hail from mild, sheltered places, and in much of the UK they flower far better with their roots in soil you can control. A pot lets you raise the crown above a cold, wet winter, move the plant out of a cutting wind, and position the flowers exactly where you sit in the evening. It also means you can grow a vigorous jasmine or honeysuckle without committing it to a wall for the next twenty years. For anyone with a courtyard, balcony or a rented garden, that flexibility is the whole point.

Choosing the pot: depth, width and weight

Size matters more than style. A climbing plant in a pot spends its first season building roots, and if the pot is shallow the roots will hit the base, dry out and stall the growth above.

• Aim for a minimum of 45cm in diameter and 45cm deep. For a mature jasmine or honeysuckle, 50–60cm across and at least 50cm deep is better still.
• Choose a heavy pot. Frosted glazed ceramic, aged terracotta or reconstituted stone will resist toppling when the plant is tall and the compost is soaked after rain. A light plastic pot plus a full trellis is a recipe for a crash on a windy night.
• Check the drainage holes before you plant. One central hole is rarely enough — look for three or four, or add a few with a masonry bit if the pot is unglazed.
• Think about the base. Raise the pot on pot feet so water can escape freely, and consider a hidden saucer or reservoir insert if you are away through the day.

If you love terracotta but find it dries too fast, a simple trick is to stand a smaller plastic pot inside a larger terracotta one, packed with bark or gravel between the two. You get the look, and the compost holds moisture much longer.

Compost and keeping the roots cool

Use a loam-based compost — John Innes No. 3 is ideal — mixed with about a quarter multi-purpose compost and a good handful of horticultural grit per pot. Loam holds water without becoming airless, and the grit keeps the drainage sharp. Avoid pure multipurpose compost, which collapses and turns to sludge by August.

Roots in a container bake in full sun, and warm, dry roots mean shrivelled buds and little scent. Mulch the surface with 3–4cm of gravel or cocoa-shell, group pots together so they shade one another, and let a low companion such as trailing nasturtium or a clump of night-scented phlox tumble over the rim. If the pot stands against a south-facing wall, a hessian wrap or a second, slightly larger pot around the base will buffer the worst of the afternoon heat.

Supports that work in a small space

Match the support to the way the plant climbs. Sweet peas grip with tendrils, so they need something fine — a wigwam of bamboo canes, pea netting or twiggy hazel. Jasmine and honeysuckle twine, so they want vertical canes or a slim wooden obelisk with horizontal bars. A wall-mounted trellis fixed to brackets, with the pot sitting in front of it, looks tidy and keeps the plant off damp masonry.

• Push supports to the base of the pot before planting — hammering them in afterwards damages roots.
• Allow at least 1.5m of height. Scent released at head height drifts indoors through an open window.
• Tie in new growth every fortnight with soft twine; the first stems need help before they learn to twine.

The best night-scented climbers for pots

Common jasmine (Jasminum officinale) is the classic, flowering from midsummer with a rich, sweet perfume that peaks after dusk. It needs sun and a sheltered wall. Late Dutch honeysuckle (Lonicera periclymenum 'Serotina') is more forgiving of shade and flowers into autumn, with creamy tubes flushed red outside. Sweet peas are the fastest reward of all — old-fashioned varieties such as 'Matucana' and 'Cupani' have far more scent than most modern show types. Sow in autumn for the earliest flowers, or in early spring, two seeds per cane. For extra evening fragrance, tuck a night-scented tobacco plant or a white nicotiana into the same pot.

Evening care through the summer

Water thoroughly in the early evening rather than the morning, letting the compost soak and any surplus drain away before night. Check daily in July and August — a large plant in a pot can use two watering cans a day in a heatwave. Feed with a high-potash tomato fertiliser every week from the first buds until late August, and keep picking sweet peas to stop them setting seed. Deadhead jasmine and honeysuckle lightly to encourage more flowers.

Leave the slugs and aphids to the birds and hedgehogs, avoid pesticides entirely, and keep artificial light to a minimum so moths can find the flowers that feed them. A shallow dish of water at ground level, a few pale blooms and a pot that holds its moisture — that is a garden doing its best work after dark.