Dieffenbachia 'Mars' Plants GrowTropicals
Dieffenbachia

Dieffenbachia 'Mars'

£18.99 £24.99 SAVE 24%
Pot size
17cm £18.99

FREE tracked delivery on orders over £60

Complete the set up
Simply Houseplant - Tropical Houseplant Potting Mix
The perfect soil Simply Houseplant - Tropical Houseplant Potting Mix · 2.5L · £3.99
Description

Dieffenbachia 'Mars' is a striking cultivar known for its large, tropical-looking leaves with bold variegation. The leaves of this variety are deep green with creamy white or light green speckling and patterns, creating an eye-catching contrast. The plant has a bushy, upright growth habit, making it ideal for adding structure and height to indoor spaces. Like other Dieffenbachia varieties, 'Mars' is easy to care for, making it a great choice for beginners or those looking for a low-maintenance yet visually appealing houseplant.

This plant does best in typical indoor conditions, tolerating low to medium light and moderate humidity. However, care should be taken when handling Dieffenbachia, as its sap can cause skin irritation and is toxic if ingested, so it's best to keep it out of reach of pets and small children.

Native to
Dieffenbachia 'Mars' is a cultivated variety of the genus Dieffenbachia, which originates from the tropical rainforests of Central and South America. In the wild, these plants grow in the forest understory, where they enjoy dappled light and high humidity. This variety has been bred for its attractive variegation and compact growth, making it well-suited to indoor environments.

Water
Dieffenbachia 'Mars' prefers to be watered regularly but likes the top inch of soil to dry out between waterings. Overwatering should be avoided, as this can lead to root rot. It is important to ensure good drainage, as the plant does not tolerate soggy conditions. In winter, reduce watering slightly as the plant's growth slows.

Light
This plant thrives in bright, indirect light but can tolerate lower light conditions. Direct sunlight should be avoided, as it can cause leaf burn, especially on the lighter parts of its variegated leaves. If placed in too much shade, the plant may lose its vibrant variegation, so moderate indirect light is best for maintaining its colourful foliage.

Humidity
Dieffenbachia 'Mars' prefers moderate humidity levels, ideally around 50-60%. If the indoor air is too dry, particularly during winter, placing it near a humidifier will help prevent browning of the leaf edges. While it can tolerate average household humidity, higher humidity levels encourage healthier, lusher growth.

Temperature
Dieffenbachia 'Mars' thrives in typical indoor temperatures between 18-24°C. It should be kept away from cold draughts or sudden temperature drops, as it is sensitive to cold. Exposure to temperatures below 15°C can cause the leaves to yellow or wilt. Stable, warm temperatures are key to promoting healthy growth and vibrant foliage.

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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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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7 day live arrival guarantee
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How to care for Dieffenbachia 'Mars'

Give me a bright spot and check my soil before watering.

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 Dieffenbachia 'Mars'

Plant type

Aroid →Foliage houseplant →

Toxicity

Harmful if chewed or swallowed. Keep it out of reach of pets and small children, and wash your hands after pruning.

Family

Araceae

Genus

Dieffenbachia →
Good to know

Frequently Asked Questions

Is this plant safe for my pets?

No, this plant isn't pet safe. It can be harmful or cause irritation if chewed, so keep it out of reach of cats and dogs. If you think your pet has eaten any, ring your vet straight away.

Looking for something safer for your pets? Have a look at our pet safe houseplants collection.

Are your plants treated with pesticides?
We aim to avoid using pesticides where possible, but we can't control the whole supply chain.

If the plant is going into a vivarium, terrarium or aquarium with live animals, rinse the leaves and roots well, remove any soil and let the plant dry out before adding it. We'd also suggest keeping it away from animals for a month first.
Can I see a photo of the exact plant I'll receive?
We're not able to send photos of individual plants or let you choose a specific one, as plants are selected by our team when your order is packed. Our photos show the variety and the kind of plant you can expect, and yours may vary a little in height, shape or fullness.

If a size has a code next to it, such as 9cm / B2, you're buying the exact plant pictured.
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.
Meet the family

Everything about Dieffenbachia

Dieffenbachia is a fast-growing tropical that handles lower light well, but hates cold draughts and wet roots. Here is how to grow it well in a UK home.

More about Dieffenbachia care
Dieffenbachia 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

  • 5 stars: 2 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
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  • 1 star: 0 (0%)
L
Leanne

Perfect healthy plant :u1FAB4:

L
Leanne

Perfect healthy plant 🪴

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Dieffenbachia 'Mars'
£18.99 £24.99