Hardy Exotic · H5 · to −15°C

Compact Martin's Spurge

Euphorbia x martini Walberton's Little Treasure

Regular price £15.99
/
Regular price £15.99
/
In stock · available for next working day dispatch
Euphorbia x martini Walberton's Little Treasure Plants - Outdoor GROW TROPICALS
Hardy Exotic · H5 · to −15°C

Compact Martin's Spurge

Euphorbia x martini Walberton's Little Treasure

Regular price £15.99
/
Regular price £15.99
/
In stock · available for next working day dispatch
Euphorbia x martini Walberton's Little Treasure

Euphorbia x martini Walberton's Little Treasure

17cm / 2L

£15.99

Tax included. Shipping calculated at checkout.
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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

Carbon-neutral shipping on all orders
HardinessHardy Exotic (H5)
PositionFull sun, Partial shade
SoilChalk, Loam, Sand
FloweringApr-Jul

Euphorbia x martini 'Walberton's Little Treasure', a compact form of Martin's spurge, is one of the brightest new evergreens for a sunny British garden. It forms a neat, dome shaped mound of narrow foliage in a glowing shade of yellow, lit by lime tinted new growth in spring and warm copper tips when the weather turns cold. Over a long spring to summer season it is topped with airy heads of zesty lime-green flowers, each with a tiny red eye, giving months of colour on a plant that rarely climbs above knee height.

Bred in the UK and released in 2025, this is a genuinely hardy exotic. Rated RHS H5, it shrugs off hard frost once established and keeps its golden foliage right through winter, so there is no bare season to wait out. It is also impressively drought tolerant, thriving on poor, gritty soils and in hot, dry corners where thirstier plants struggle. Explore the rest of our hardy exotics to build a scheme that looks good all year.

How and where to grow

  • Position: full sun for the richest yellow colour, though it tolerates light or partial shade.
  • Soil: any free-draining soil, from chalk to sand, across the full pH range; sharp drainage is the key to a happy plant.
  • Size: a compact 30 to 40 cm in height and spread, so it stays neat at the front of a border or in a pot.
  • Hardiness: reliably hardy in the UK, evergreen, and best given a sheltered spot out of cold drying winds.

Its low, mounded habit makes it a natural for pots and containers, for the front of exotic borders, and for dry and gravel gardens where its sculptural, evergreen form earns a place among our architectural foliage. Water regularly through the first summer to establish a strong root system, after which it needs very little beyond a light trim of faded flower stems. Wear gloves for that job, as the milky sap is a skin and eye irritant and is harmful if eaten.

For a picture of how hardy exotics settle in and change through the seasons, see our guide on what to expect. Every plant we send is nursery-grown, hand-selected for a healthy crown and strong roots, and packed with care to arrive in top condition.

Hardiness & Frost

Fully hardy across most of the UK (RHS H5), taking winter lows to around -10C to -15C once established. It is evergreen, so the golden foliage holds through winter. Give it a sheltered spot out of cold drying winds and, above all, sharp drainage; winter wet at the roots is the main risk, so raise pots off the ground in the coldest months.

Sun & Aspect

Full sun gives the brightest yellow foliage and the neatest, most compact dome. It also copes with light or partial shade. A south, east or west facing position is ideal.

Soil

Happy in any free-draining soil, from chalk to loam to sand, across acid, neutral and alkaline pH. Drainage matters most: add plenty of grit to heavy ground, and in containers use a peat-free compost with extra grit or perlite.

Watering & Establishment

Water regularly through the first season to settle the roots in. After that it is notably drought tolerant and needs little watering in the ground, while pots want an occasional soak in hot spells. Wear gloves when trimming spent flower stems in summer, as the milky sap is a skin and eye irritant.

Euphorbia Care Guide

Euphorbia Care Guide

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.

Read the full care guide
  • Yes. It is rated RHS H5, so it is fully hardy across most of the UK and takes hard frost once established. Being evergreen, it holds its golden foliage right through winter. In very cold, wet gardens the main risk is winter wet at the roots, so give it sharp drainage and a sheltered spot.

  • It is a genuinely compact spurge, reaching only about 30 to 40 cm tall and wide. It forms a neat, dome shaped mound that stays tidy at the front of a border, in a gravel garden, or in a pot, without the sprawl of larger euphorbias.

  • Give it full sun for the brightest yellow foliage, though it also copes with light or partial shade. It loves free-draining soil and is ideal for hot, dry spots. It is a natural choice for dry and gravel gardens and for the front of exotic borders.

  • Yes, it is evergreen and earns its keep all year. The foliage is a bright, glowing yellow, with lime tinted new growth in spring and warm copper tips when temperatures drop in autumn and winter, so there is colour even in the coldest months.

  • Take care when handling it. Like all euphorbias, the milky white sap is a skin and eye irritant and is harmful if eaten, so wear gloves when cutting it back and keep it away from children and pets. Wash off any sap that touches skin promptly.

  • Absolutely. Its compact, drought tolerant habit makes it one of the best euphorbias for containers. Use a peat-free compost with added grit for drainage, water while it establishes, then only in dry spells. See more of our plants for pots and containers.

  • 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.
  • 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.
  • 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.
  • 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.
  • 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.

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. Whether grown in our own nursery or sourced from trusted partner growers, every plant is checked before it ships. On the rare occasion something isn't right on arrival, we'll make it good, provided the plant is still in its original nursery pot.

Find out more →

Plant Details

Hardiness, position, soil and size, at a glance.

Hardiness

Hardy Exotic

RHS H5 · hardy down to around −15°C

Hardy through a cold UK winter.

Size

30-40 cm 30-40 cm
Reaches full size in 2-5 years.

Position

SunFull sunPartial shade
AspectEast-facingSouth-facingWest-facing
ExposureSheltered

Growing conditions

SoilChalkLoamSand
MoistureWell-drained
pHAcidAlkalineNeutral

Pruning

Herbaceous perennial

When to prune · Autumn, or better still, early spring

Cut each flowered stem back to the base once it fades in early summer, leaving the new shoots to flower next year. Wear gloves: the sap is a skin irritant.

Pruning groups explained →

Colour & scent

Botanical details

Family
Euphorbiaceae
Foliage
Evergreen
Habit
Bushy
Native range
Of garden origin
Potentially harmful
The milky sap is a skin and eye irritant and is harmful if eaten. Wear gloves and eye protection when handling or cutting back, and keep it away from children and pets.

Flowering

In flower Apr-Jul

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.

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.

See What's In the Box!

See behind the box with these awesome unboxing videos from some of our favourite Youtubers.

Unboxing video
Unboxing video
Unboxing video
Unboxing video