Hanging Nasturtiums: A Historic Display Idea That Still Works

Hanging baskets of trailing nasturtiums (Tropaeolum majus) were a signature of Victorian and Edwardian summer displays, especially in conservatories, glasshouses and sheltered porches where long stems could fall freely and be seen from below. The historical practice is worth reviving because it solves a design problem neatly: nasturtiums flower best in lean, sunny conditions but flop and sprawl when grown flat in rich border soil, and gravity turns that sprawl into an asset. Grown downward from a basket, the same vigorous stems become a curtain of round leaves and spurred flowers instead of an untidy mat.

Why the basket suits nasturtiums better than a border

Nasturtiums are naturally trailing or scrambling plants. In open ground they build a loose mound and then lean outward, often smothering smaller neighbours. In a hanging container the stems travel downward, the plant stays compact at the crown and air moves freely around the foliage. That airflow matters: dense, damp foliage in still corners is where nasturtiums develop problems first.

The second reason is light. Flowering depends on direct sun, and a basket can be raised above walls, low fences and neighbouring plants that would otherwise shade a ground-level planting. The trade-off is water. A small basket in full sun dries fast, and nasturtiums resent both drought and waterlogging. Choose the largest basket you can hang safely, because a generous volume of growing medium holds moisture steadier through a hot afternoon than a tiny wire cone packed with roots.

What the old displays got right

Historic glasshouse displays treated nasturtiums as summer bedding, started from seed in spring and moved out once nights had warmed. The takeaway for a modern hanging basket is timing: nasturtiums are tender, so they are set out after the local last frost date, not according to a fixed calendar month. Starting seed indoors in individual pots four to six weeks before that date gives plants with a head start, provided they get bright light. Seedlings kept in dim indoor conditions stretch and pale, and stretched stems never make the graceful cascade the whole idea depends on.

Building the basket

Use a wire basket lined with coir or a similar natural liner, or a solid hanging planter with drainage holes. Drainage is not optional; nasturtiums rot at the crown in permanently saturated medium. A general-purpose peat-free potting mix with some grit or perlite mixed through gives roots moisture without the heaviness of garden soil.

• Set one plant per 30-35 cm of basket diameter for Tropaeolum majus; overcrowding produces weak, competing stems.
• Use compact or semi-trailing cultivars for small baskets and full trailing forms for large ones, because growth habit varies widely within the species.
• Position the basket so the crown of the plant sits level with or slightly above the medium; a buried crown invites rot.
• Hang where the basket receives several hours of direct sun and where the trailing stems will not be crushed against a wall.

Slower-to-establish companion plants can fill the top of a large basket while nasturtium stems begin to fall. Upright, sun-loving annuals with modest water needs make better partners than thirsty foliage plants, which compete for the same limited root space.

Watering and feeding in a container

Container watering depends on basket size, temperature, wind and how much foliage the plant carries, so no calendar schedule fits. Check the medium at finger depth and water when it is drying but not bone-dry; in hot, breezy weather that may be daily for a small basket and every few days for a large one. Water in the morning where possible so the foliage dries before evening.

Feed lightly. Nasturtiums are famously responsive to nitrogen: rich feeding produces abundant, handsome leaves and few flowers. A dilute high-potassium liquid feed at intervals through the flowering season supports bloom without pushing leaf growth, but keep the strength low and stop if the plant responds with leafy growth and no buds. This is where the historic lean-culture approach still earns its place. The old display growers understood that a slightly hungry nasturtium flowers harder than a fat one.

Flowers, foliage and the ornamental payoff

The value of a hanging nasturtium is not a single feature but the combination: shield-shaped leaves with pale veining, long spurs behind each flower, and colours running from cream through yellow and orange to deep red. Pale yellow and cream forms read strongly in shade; oranges and reds hold up in bright sun. The rounded leaves catch backlight well, which is why a basket seen from a patio chair below often shows the plant better than a ground bed does.

Regular deadheading keeps the display tidy and encourages further flowering. Pinch or trim any stem that becomes leggy or bare at the base to prompt branching. In a long, warm season plants can become woody and thin; light trimming restores a fuller curtain.

Pests and the honest limits

Aphids are the commonest problem on container nasturtiums, gathering on soft new tips and flower buds. Blackfly can build quickly on a sheltered basket, so inspect growing tips every few days and act early with a targeted spray or a forceful water jet where the plant can take it. Cabbage white caterpillars sometimes strip the foliage in late summer. Nasturtiums also attract pollinators, which is part of their garden value, so choose controls that do not undo that benefit.

The main limitation to accept is transience. Nasturtiums dislike sustained heat and can decline in midsummer in very hot climates, and tender plants in a small basket will not survive frost. Treat the display as a seasonal one, replacing or resowing for a second flush where the growing season allows.

Seed, supports and the equipment that helps

Nasturtiums are easy from seed and the seed itself is large enough to handle comfortably, which makes them a good project for someone new to raising plants. Buy fresh seed of a named cultivar where habit matters, since a mixed packet may give upright plants unsuited to a basket. A simple seed-raising tray, a small watering can with a fine rose and a bright, frost-free windowsill or a propagation light carry the early stage. For the display itself, a sturdy hanging bracket rated for the weight of a watered basket is the piece of kit that prevents disappointment; a full large basket is heavy, and a bracket chosen for an empty pot is not enough.

Look for baskets with a removable liner or a reservoir base if you want more forgiving watering, and choose a bracket with a swivel hook so the display can be turned for even growth and trimmed from a steady position. These are modest purchases that make the difference between a striking historic-inspired cascade and a lopsided, dry pot.

Making the historic idea your own

The point of the old hanging displays was to show a plant at its most graceful by letting it move downward and be seen against the light. Recreate that with a large coir basket, a lean medium, a sunny hang point and light feeding, and the nasturtium does the rest. It is a seasonal ornament rather than a permanent fixture, and that is precisely why it remains worth growing.