Euphorbia x martini 'Ascot Rainbow' 17cm / 2L Plants - Outdoor GROW TROPICALS
Euphorbia x martini 'Ascot Rainbow' — 10cm / 0.7L
Variegated Martin's Spurge

Euphorbia x martini 'Ascot Rainbow'

£7.99
Hardy in the UKSun-lovingEvergreenRHS award winnerLoved by pollinators
Pot size

FREE tracked delivery on orders over £60

Complete the set up
Description

The Euphorbia x martini 'Ascot Rainbow', also known as the variegated Martin's spurge, is one of the most colourful and architectural evergreens you can add to a sunny border. Neat cream-and-green variegated foliage forms a tidy mounding dome, flushing vivid red and pink at the tips as the weather turns cold, then in spring the whole plant is topped with striking lime-green bracts, each marked with a tiny red eye.

Rated RHS H5 and holding the RHS Award of Garden Merit, 'Ascot Rainbow' is fully hardy across most of the UK, shrugging off temperatures down to around -15C once established. Because it is evergreen, the variegated rosettes hold their colour right through winter, giving structure long after herbaceous neighbours have died back. It is sun-loving and drought tolerant, sitting happily alongside our wider range of hardy exotic plants.

Water through the first summer to settle the roots, after which 'Ascot Rainbow' is impressively self-sufficient. Its tidy, mounding shape makes it perfect for pots and containers, gravel gardens and the sharp lines of architectural foliage schemes, and it pairs beautifully with taller structural plants such as our Trachycarpus fortunei.

Please note: the milky white sap is a skin and eye irritant and is harmful if eaten, so wear gloves and eye protection when pruning and keep cuttings away from children and pets.

Every plant we supply is nursery-grown, hand-selected for strong colour and healthy growth, and carefully packed 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.

Find out more

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.

Best quality plants guaranteed
7 day live arrival guarantee
Delivered to your door with care
Earn 39 points with this plant · 5 points per £1 Join free

How to care for Variegated Martin's Spurge

Plant me in full sun 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.
Get to know me

About Variegated Martin's Spurge

Euphorbia x martini 'Ascot Rainbow' needs full sun and well-drained soil. It is hardy to around −15°C and stands a UK winter outdoors.

Good for

Architectural Dry & Gravel Gardens Exotic Borders Pots & Containers

Hardiness

TenderVery hardy

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

reliably hardy and low maintenance in the UK; see our hardy exotics guide for seasonal expectations.

Position

Full sunSouth-facingWest-facingEast-facingSheltered

full sun in a sheltered spot, ideal for a hot, south or west-facing border or the front of an exotic border.

Soil

ChalkLoamSandWell-drainedAcid pHAlkaline pHNeutral pH

any free-draining chalk, loam or sand across the full pH range; it thrives in lean, sharply drained ground and earns its place among our drought tolerant plants.

Watering

Water through the first summer to settle the roots, keeping the soil moist but never waterlogged. Once established it is very drought tolerant and needs little more than a light trim of the flowered stems, wearing gloves, to keep it neat. Read moreShow less

Water through the first summer to settle the roots, keeping the soil moist but never waterlogged. Once established it is very drought tolerant and needs little more than a light trim of the flowered stems, wearing gloves, to keep it neat.

Mature size

Height0.4-0.5 m
Spread0.4-0.5 m

Reaches full size in 2-5 years

Growth habit

Bushy

Flowering

Mar-Jul · Green

Seasonal colour

Foliage

Evergreen

Pruning

Cut each flowered stem right down to the base as the blooms fade in early summer, sparing the fresh shoots. Wear gloves: the milky sap irritates skin.

Toxicity

The milky white sap is a skin and eye irritant and is harmful if eaten. Wear gloves and eye protection when handling or pruning, and keep cuttings and plant material away from children and pets.

Native range

Garden origin

Family

Euphorbiaceae

Also known as

Euphorbia x martini 'Ascot Rainbow'

Genus

Euphorbia →
Good to know

Frequently Asked Questions

Is Euphorbia 'Ascot Rainbow' fully hardy in the UK?

Yes. It is rated RHS H5 and holds an Award of Garden Merit, so it is fully hardy across most of the UK, tolerating around -15C once established. As an evergreen it keeps its variegated foliage right through winter. Browse more of our hardy exotic plants.

Is Euphorbia 'Ascot Rainbow' poisonous?

Take care, as the milky white sap is a skin and eye irritant and is harmful if eaten. Wear gloves and eye protection when handling or pruning, and keep it away from children and pets. It is otherwise an easy, low maintenance evergreen.

How big does Euphorbia 'Ascot Rainbow' get?

It forms a compact, bushy mound reaching roughly 1 to 1.5 m tall and up to about 1 m wide over two to five years. A trim after flowering keeps it neat, making it ideal for exotic borders.

Where should I plant Euphorbia 'Ascot Rainbow'?

Give it full sun and free-draining soil in a sheltered, south or west-facing spot. It thrives in gravel gardens and lean soils, so it is a natural choice among drought tolerant plants.

Can I grow Euphorbia 'Ascot Rainbow' in a pot?

Yes. Its tidy, mounding habit and drought tolerance make it excellent for containers on a sunny patio. Use a gritty, free-draining compost and never let it sit wet in winter. Browse more plants for pots.

How do I prune Euphorbia 'Ascot Rainbow'?

Trim back the flowered stems once the lime-green bracts fade in summer to keep the plant compact and encourage fresh growth. Always wear gloves and eye protection, as the milky sap is an irritant. See our hardy exotics guide for seasonal care.

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.
Meet the family

Everything about Euphorbia

Euphorbia are architectural, low-maintenance plants that need bright light and infrequent watering. This guide covers care for all major types, with an important note on their toxic sap.

More about Euphorbia care
Euphorbia Care Guide
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.

Verified reviews

Rated by real customers

You may also like

We recommend
Euphorbia x martini 'Ascot Rainbow'
£7.99