Winter Interest Plants for UK Gardens

Winter doesn’t have to mean the garden shuts down for a few months. Even when the leaves have fallen and the borders are looking a little quieter, there are plenty of plants that can keep things interesting.

This is where hardy exotics really come into their own. In this guide, we’re looking at the hardy exotics that can provide interest through winter, how to care for them during the colder months, and which plants are best left well alone until spring.

What to plant for winter interest?

Four different jobs make up a winter garden, and a good planting covers all of them rather than doubling up on one.

• Evergreen structure. The permanent shapes that stop the garden reading as empty. This is the layer most people are short of.
• Winter flower and scent. A small number of plants genuinely flower in the coldest months, and one or two of them are strongly scented.
• Seedheads and dried stems. Deciduous plants that keep their shape after they die back, catching frost and low light.
• Silhouette and texture. Trunks, fronds and leaf shapes that read from a distance on a grey day.

Get one plant doing each job and a small garden looks furnished in February. Plant only for summer and it will not.

Evergreen structure: the backbone

Start here, because everything else hangs off it. Trachycarpus wagnerianus is the most reliable piece of winter architecture we sell. It is rated RHS H5 on its product page, evergreen, and reaches 3 to 6 m in time. Its fan leaves are stiffer and shorter than the more common windmill palm, which is exactly why it holds its shape in an exposed garden through winter instead of shredding.

For the middle layer, Fatsia japonica 'Spiders Web' at RHS H5 gives you large glossy hands of foliage, speckled white, at 1.5 to 2.5 m. It is one of the few plants that looks genuinely tropical and takes a dark, north-facing corner without complaint. There is a full year-round routine in our Fatsia outdoor care guide.

Where you need bulk rather than a specimen, Griselinia littoralis is RHS H5, evergreen, and grows to 4 to 8 m with apple-green leaves that stay fresh right through winter. It takes wind and coastal exposure well. If screening is the real problem you are solving, our guide to the best evergreen screening plants for UK gardens covers that job properly.

Winter flowers, and winter scent

Very few plants flower in a British December. The ones that do are worth planting where you walk past them, not at the back of a border where nobody will notice.

Sarcococca confusa, sweet box, is the one to plant first. Its product page lists it as RHS H5 with a flowering period of December to March, and it holds an RHS Award of Garden Merit. The flowers are small and creamy and easy to walk straight past, until the scent stops you. It reaches 1.5 to 2 m, takes partial or full shade, and is happy in the kind of dim spot by a path or a back door where almost nothing else will flower. It is also good for pollinators on mild winter days.

For height and a bolder flower, Mahonia x media 'Winter Sun' is RHS H5, flowers from November to March, carries an Award of Garden Merit, and reaches 2.5 to 4 m. The upright yellow spikes are the brightest thing in most gardens in midwinter. Be aware the leaf tips are sharply spined, so keep it back from a narrow path. If you want the same effect at a smaller scale, Mahonia 'Meteor' is also RHS H5 but stays at 1 to 1.5 m with much softer, narrower foliage, flowering from August into November.

What should you leave standing over winter?

This is where the generic autumn tidy-up advice actively costs you. The instinct is to cut everything down in October. For winter interest, and for the health of several of these plants, the opposite is true.

Grass seedheads are the clearest example. Miscanthus sinensis 'Zebrinus' is RHS H7 and deciduous, growing to 1.5 to 1.8 m, and its flower plumes and bleached stems stand through most of the winter. Cut it in autumn and you throw away four months of structure and frost-catching detail. Leave it until late winter instead. Our short guide on when to cut back ornamental grasses gives the timing.

The same logic applies to Dicksonia antarctica, rated RHS H4. Its old fronds bend down over the crown and act as insulation, so leaving them in place is doing a job, not looking untidy. Cut them off in spring once the new croziers are moving.

What are some good autumn and winter plants for pots?

Containers are where winter interest matters most, because a pot by a door is looked at every single day. Three of the plants above work particularly well in one.

• Fatsia 'Spiders Web' for a large, shaded pot. Big foliage, no flowers needed.
• Sarcococca confusa beside a door or gate, where the winter scent gets used rather than wasted.
• Fargesia 'Jiuzhaigou', rated RHS H6, evergreen, clump-forming and 2 to 3 m. It gives movement and sound in a winter wind, and being a clumper it will not run out of the pot.

One honest caveat. Astelia chathamica 'Silver Spear' is beautiful in winter light, with metallic silver blades at 1.2 to 1.5 m, but its product page lists it at RHS H3. That is a sheltered or coastal garden plant, or a pot you can move somewhere protected. Do not plant it in an open, cold garden and expect it to shrug off a hard winter.

For any container, insulate the pot rather than the plant, raise it on feet so water drains freely, and keep the compost damp rather than wet. Cold, sodden roots in a pot kill more plants than cold air does.

Which of these actually survive winter outside?

Worth being precise, because "hardy" gets used very loosely. Every band below is the RHS rating listed on that plant's own product page.

Eight of the nine are H4 or better, which is why this group works as a winter planting. The Astelia at H3 is the exception and needs shelter or a pot that can be moved. Bands are a guide rather than a guarantee: a young plant in its first winter, or anything in a container, is more vulnerable than the same plant established in open ground.

Three ways winter interest goes wrong

• Planting for July only. A border of summer perennials is bare ground for five months. Fixing this needs evergreen structure added, not more flowers.
• Cutting everything back in autumn. Seedheads and old fronds are both the display and, in several cases, the plant's own frost protection.
• Ignoring drainage. Most winter losses in a UK garden are wet roots rather than cold air. Improve drainage before you start wrapping things.

If you are planting this autumn, our guide to mulching outdoor exotic plants covers protecting the root zone, and the winter protection guide for hardy exotics covers wrapping and crown care for the plants that need it.

Shop this look

Browse the full hardy exotics range for current sizes and availability. For the shady side of the garden, where sweet box and Fatsia do their best work, see plants for shade and woodland, and for the standing seedheads that carry a border into February, ornamental grasses. Every dispatch is protected by our live arrival guarantee.