Acer palmatum 'Atropurpureum' Plants - Outdoor GROW TROPICALS
Purple Japanese Maple

Acer palmatum 'Atropurpureum'

£15.99
Hardy in the UKShade-tolerant
Pot size
15cm / 1.5L £15.99

FREE tracked delivery on orders over £60

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Description

The Acer palmatum 'Atropurpureum' is the classic deep purple-red Japanese maple, a timeless choice that anchors any exotic or Japanese-style garden. It carries rich burgundy-purple palmate leaves through spring and summer, then sharpens to fiery scarlet and crimson in autumn before leaf fall. This is the cultivar most people picture when they think of a purple Japanese maple, and it remains the most reliable performer of its colour group.

This is a 15cm starter plant, the perfect size for growing on in a sheltered nursery spot or for slotting into a smaller border or container while it builds its frame. It will reach roughly four to six metres over many years, settling into a graceful round-headed small tree.

This starter size is ideal for growing on in a generous container for a few seasons before moving to its forever home. Position it where the rich purple foliage can be appreciated, in an exotic border or as the centrepiece of a Hardy Exotic garden against a lighter backdrop. It also works well in a shaded woodland-style planting. See our what to expect from outdoor plants guide for season-by-season notes.

Every Acer palmatum 'Atropurpureum' we send is a strong, well-rooted young plant, hand-selected for a healthy crown and balanced shape, and packed with care to arrive in superb condition.

Live Arrival Guarantee

All plants are covered by our 7-day live arrival guarantee. We pack every order in protective, sustainable packaging designed to keep your plants safe in transit, and every plant is checked before it ships. On the rare occasion something is not right on arrival, we will make it good, provided the plant is still in its original nursery pot.

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What to Expect

Seasonal by nature: what to expect

  • Grown outdoors, the way nature intended. Weather-tested and hardened in real UK conditions, so they thrive in your garden. A few marks on the older leaves are normal, the sign of a tough, real plant rather than a flaw.
  • It follows the seasons. Depending on when you order, your plant may arrive cut back, dormant or leafless. That's healthy: dormancy is the ideal time to plant.
  • Posted, not posed. Big leafy plants like bananas and gingers may be trimmed or gently folded to travel safely. It does the plant no harm, and it powers away again in spring.

Not sure what to expect from yours? Dormant, cut-back or weather-marked plants are all perfectly healthy and normal. Read what to expect through the seasons

Delivery & returns

Order by 1pm Monday to Friday for same day dispatch. Every plant travels in protective, plant-safe packaging with tracked delivery.

Changed your mind? See our Return Policy.

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How to care for Purple Japanese Maple

Give me sun with a little shade and I will stand a UK winter outdoors.

In their words

What our customers say

Arrived just like the photos - maybe even fuller. Healthy, well-acclimated, and straight into my collection with no issues.

Emily P.

Flawless leaves, stunning variegation, and clearly cared for by experts. It’s already a talking point in my home office.

James R.

Hard to find rare plants that are pet-safe. Ours arrived in perfect condition and looks amazing without any worry.

Sophie L.
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About Purple Japanese Maple

Acer palmatum 'Atropurpureum' needs partial shade or full sun and moist but well-drained soil. It is hardy to around −15°C and stands a UK winter outdoors.

Good for

Architectural Exotic Borders Pots & Containers Shade

Hardiness

TenderVery hardy

RHS H5 · Hardy Exotic · down to around −15°C

RHS H5, reliable to around -15C once established.

Position

Partial shadeFull sunEast-facingNorth-facingWest-facingSheltered

partial or dappled shade, sheltered from cold drying winds and hot afternoon sun.

Soil

LoamSandClayMoist but well-drainedAcid pHNeutral pH

moist but free-draining, on the acid to neutral side, enriched with leaf mould.

Watering

Water deeply once or twice a week through the first two summers to establish the root system. Mulch each spring with leaf mould. Once established it tolerates normal UK summers; soak in any prolonged dry spell to keep the colour rich. Read moreShow less

Water deeply once or twice a week through the first two summers to establish the root system. Mulch each spring with leaf mould. Once established it tolerates normal UK summers; soak in any prolonged dry spell to keep the colour rich.

Mature size

Height4-6 m
Spread4-5 m

Reaches full size in 20-50 years

Growth habit

Bushy

Flowering

May

Seasonal colour

Foliage

Deciduous

Pruning

Japanese maple needs minimal pruning. Thin out only dead, crossing or awkward branches from midsummer to autumn when sap bleeding is least, and avoid cutting into old wood.

Toxicity

No reported toxicity to people or pets.

Native range

Japan, Korea, E. China

Family

Sapindaceae

Also known as

Acer palmatum 'Atropurpureum'

Genus

Acer
Good to know

Frequently Asked Questions

How do you care for Acer 'Atropurpureum'?

Plant in moist, free-draining soil on the acid to neutral side, in partial or dappled shade with shelter from cold drying winds. Water deeply through the first two summers and mulch each spring with leaf mould. See our Hardy Exotics seasonal guide for what to expect through the year.

How big does Acer 'Atropurpureum' get?

This is the classic round-headed purple Japanese maple. Expect a slow, graceful tree reaching around 4-6 metres tall and 4-5 metres wide over twenty to fifty years. It stays in proportion for many years before reaching its mature dimensions.

Can you grow this Acer in pots?

Yes, especially at this 15cm starter size. Pot it on into a 20-30 litre patio container of peat-free, free-draining loam-based compost on the acid to neutral side. Stand in a sheltered spot with morning sun and afternoon shade. Repot every two to three years and feed each spring.

Will the purple foliage fade in summer?

In hot sun or dry positions 'Atropurpureum' can fade towards bronze-green by midsummer. Planting in partial shade with consistently moist soil keeps the purple colour strong from spring right through to the fiery autumn finale.

Is Acer 'Atropurpureum' fully hardy in the UK?

Yes. 'Atropurpureum' is rated RHS H5, hardy down to around -15C once established. It thrives across most of the UK. Late spring frosts can scorch newly emerged purple foliage; a sheltered position resolves this.

What size pot is this Acer in?

This is a young plant supplied in a 15cm pot, around 1.5 litres of compost. It is ready to be potted on into a 5-10 litre container for the first season or planted out in spring into its final position. A perfect starter size to grow on into a 2-3 metre specimen over the next few years. See more in our exotic border collection.

Does my plant come with a pot?
Your plant will arrive in its nursery grow pot — the plastic pot it's been growing in. We don't include a decorative pot as standard, and there's a good reason for that: it means you get to choose one that fits your space and style, rather than being stuck with something that doesn't suit your home.

It also means you're not paying extra for a pot you might not want. The nursery pot is perfectly fine to keep your plant in for a while, just pop it inside a decorative cover pot or cache pot and you're good to go. When you're ready to repot (usually after a growing season or when roots start poking out the bottom), you can move it into something more permanent with fresh soil.

If you're not sure what size cover pot to go for, check the pot selector tool listed above, you'll want a decorative pot that's a centimetre or two wider than that to give it a comfortable fit.
How big will my plant be when it arrives?
Every plant on our site includes the pot size (e.g. 12cm) and, where possible, an approximate height. That's the most reliable way to set your expectations, photos can sometimes make a plant look larger or smaller than it really is.

If you're thinking "that sounds quite small for the price," here's something worth knowing: younger, smaller plants almost always adapt better to your home than larger ones. They adjust faster to your light and humidity, put out new growth more quickly, and tend to establish stronger root systems long-term. A plant that grows into your space will usually outperform one that was already big when it arrived.

That said, every plant is an individual. The one you receive may vary slightly in height, shape, or fullness compared to the photo, that's the nature of living things, not a quality issue. We select healthy, well-established specimens, and if you ever feel your plant doesn't match what you were expecting, just get in touch and we'll take a look.
What makes your plants different from the supermarket or garden centre?
There's a big difference between a plant that's been sitting under on a retail shelf and one that's been looked after and cared for by people who specialise in exactly this.

Our plants are grown in house or sourced from specialist nurseries, many of them varieties you simply won't find at your local garden centre or supermarket. Before anything leaves us, it's checked over by our horticultural team to make sure it's healthy, well-rooted, and ready to thrive in your home. We're not shifting volume off a pallet, we're choosing plants we'd want to keep ourselves.

When you buy from a supermarket, you get a plant and a generic care label. When you buy from us, you get the knowledge that comes with it, detailed care guidance, a team you can actually contact if something isn't going right, and the confidence that what's arriving has been looked after properly from the moment it was grown to the moment it reaches your door.

We're a specialist nursery first, not a retailer that happens to sell plants. That's the difference, and you'll see it the moment you open the box.
What should I do when my plant arrives?
First things first, unbox it as soon as you can. Plants don't love being in dark boxes any more than you would, and the sooner yours is out and breathing, the better.

Remove all the packaging carefully, give the soil a check with your finger, and water lightly if it feels dry. Then find it a spot with appropriate light, but avoid putting it straight into harsh direct sun or next to a radiator. Think of it like arriving somewhere new after a long journey: it needs a moment to adjust.

It's completely normal for your plant to look a little tired or droopy after transit. This is called transit stress, and most plants bounce back within a week or two. You might see a yellow leaf or some drooping, don't panic, and resist the urge to overwater or start repotting straight away.

Our advice for the first couple of weeks: leave it in its nursery pot, water it only when the top layer of soil feels dry, and let it acclimatise to your home's light, temperature, and humidity. Once it's settled in and showing signs of new growth, you can think about repotting or moving it to its permanent spot.

Every plant we sell comes with a care guide on the product page so you'll know exactly what it needs going forward. And if anything doesn't look right, get in touch with our team, we're always happy to help.
Will my plant survive being shipped?
Yes! and we go to serious lengths to make sure of it. Every plant is hand-packed by our team with protective wrapping and secure, custom-designed boxes to keep it stable and safe in transit. We've shipped hundreds of thousands of plants across the UK and our packaging methods have been refined over years to handle the bumps and jolts of delivery.

During colder months, we monitor weather forecasts and offer heat packs where needed to protect against frost. In extreme conditions, we may hold your order for a day or two rather than risk sending it out, we'd rather you wait an extra day than receive a stressed plant.

That said, plants are living things, and the occasional transit wobble can happen. If your plant arrives damaged or isn't in the condition you'd expect, just get in touch within 48 hours with a photo, and we'll make it right, whether that's a replacement or a full refund. No fuss.

The short version: we treat every box like it's going to someone who really cares about what's inside, because it is.
Why Grow Tropicals

Plants delivered the way they deserve

Packaged with Care

Packaged with Care

Every order is hand-packed in eco-friendly, protective packaging - refined through thousands of deliveries to ensure your plant arrives healthy, hydrated, and looking its best.

Backed by our Live Arrival Guarantee.

Perfect for Gifting

Perfect for Gifting

From rare collector’s pieces to easy-care favourites, our plants arrive fully potted and ready to enjoy. Add a personalised note at checkout for a thoughtful finishing touch.

Delivered fresh, beautiful, and gift-ready.

Sustainability at Heart

Sustainability at Heart

All plants are ethically sourced from trusted growers, never wild-collected. Every order ships carbon-neutral in minimal-waste packaging.

Good for your home - and the planet.

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Acer palmatum 'Atropurpureum'
£15.99