Brunnera macrophylla 'Mega Heart' Plants - Outdoor GROW TROPICALS
Siberian Bugloss 'Mega Heart'

Brunnera macrophylla 'Mega Heart'

£13.99
Very hardyShade-tolerantLoved by pollinators
Pot size
17cm / 2L £13.99

FREE tracked delivery on orders over £60

Complete the set up
Description

Brunnera macrophylla 'Mega Heart' is a Siberian bugloss chosen for the size of its leaves. Extra large, sturdy, heart-shaped leaves, washed silver with a fine net of green veins and a narrow green rim, build into a bold, ground-covering clump in shade, and in early spring airy sprays of small, sky-blue, forget-me-not flowers rise just above them.

Hardiness and seasons. The RHS rates Brunnera macrophylla H6, hardy anywhere in the UK. It is a herbaceous perennial: the leaves die back over winter and fresh ones unfurl in early spring, just ahead of the flowers, which run from April into May. In a cool, moist spot the foliage then stays in good shape until autumn.

Where it fits. Use it at the front of a shade planting, under deciduous shrubs or along a woodland path, where the big leaves read clearly in low light. Early bees visit the flowers, so it earns a place among plants for pollinators. For another silver-leaved form, look at Brunnera 'Silver Heart'.

What you receive: a young plant in a 17cm (2L) pot. From late autumn to early spring it may be dormant, with few or no leaves.

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 69 points with this plant · 5 points per £1 Join free

How to care for Siberian Bugloss 'Mega Heart'

Give me sun with a little shade and the coldest UK winters do not worry me.

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 Siberian Bugloss 'Mega Heart'

Brunnera macrophylla 'Mega Heart' needs partial shade or full shade and moist but well-drained soil. It is very hardy, standing the coldest UK winters outdoors.

Good for

Exotic Borders Shade Wildlife & Pollinators

Hardiness

TenderVery hardy

RHS H6 · Hardy Exotic · down to around −20°C

The RHS rates Brunnera macrophylla H6, hardy throughout the UK to around -20C. It dies back to ground level in winter and regrows in early spring, so an empty pot or bare patch in winter is normal. See what to expect through the seasons.

Position

Partial shadeFull shadeNorth-facingEast-facingWest-facingSheltered

Partial to full shade, out of hot afternoon sun, which can scorch the large leaves. A sheltered, north, east or west-facing spot is ideal. It is at its best at the front of a shady exotic border, under deciduous shrubs or beside ferns, and pairs well with silver-leaved brunneras such as 'Jack of Diamonds'.

Soil

ChalkClayLoamSandMoist but well-drainedAcid pHAlkaline pHNeutral pH

Moderately fertile, humus-rich soil that stays moist but drains well, whether chalk, clay, loam or sand, at any pH. It dislikes drying out, so dig in leaf mould or compost at planting and mulch each spring.

Watering

Water well through the first summer and in dry spells, as the large leaves wilt quickly when dry. Mulch with leaf mould or compost each spring. Read moreShow less

Water well through the first summer and in dry spells, as the large leaves wilt quickly when dry. Mulch with leaf mould or compost each spring.

Mature size

Height0.3-0.45 m
Spread0.45-0.6 m

Reaches full size in 2-5 years

Growth habit

Clump-forming

Flowering

Apr-May · Blue

Seasonal colour

Foliage

Deciduous

Pruning

No pruning is needed. Remove the old, tatty leaves in late winter before new growth starts, and cut off faded flower stems after flowering if you want a tidier clump. Divide congested clumps in early spring.

Native range

NE Turkey and the Caucasus (species); 'Mega Heart' is a cultivated selection

Family

Boraginaceae

Also known as

Brunnera macrophylla 'Mega Heart'

Genus

Brunnera
Good to know

Frequently Asked Questions

Is 'Mega Heart' a registered Brunnera variety?

'Mega Heart' is a newer variety sold by European nurseries, and it is not yet listed on the RHS plant database. It is a selection of Brunnera macrophylla chosen for extra large, sturdy, silver leaves netted with green veins. It is supplied to us as 'Mega Heart Blue', the 'Blue' referring to its flowers.

Does Brunnera like sun or shade?

Shade. It grows best in partial or full shade in soil that stays moist, and hot afternoon sun scorches the leaves. It is one of the most reliable perennials for shady borders.

How big does Brunnera macrophylla grow?

The species forms a clump around 30 to 45cm tall and 45 to 60cm wide over two to five years. 'Mega Heart' is chosen for larger leaves rather than extra height.

Does Brunnera die back in winter?

Yes. It is a herbaceous perennial, so the leaves die down in late autumn and new ones appear in early spring, closely followed by the blue flowers. It is fully hardy, rated H6 by the RHS.

Is Brunnera good for bees?

Yes. Its sprays of small blue flowers open in early spring, when bees and other pollinators are looking for food, which makes it a good choice for pollinator-friendly planting.

How do I look after Brunnera?

Keep the soil moist, especially in its first summer, and mulch with leaf mould or compost in spring. Cut away the old leaves in late winter. Slugs and snails occasionally nibble the leaves; otherwise it is low maintenance and deer and rabbits tend to leave it alone.

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 7 days 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.

Verified reviews

Rated by real customers

You may also like

We recommend
Brunnera macrophylla 'Mega Heart'
£13.99