Corten Steel Onyx Planter

Large signature planter combining sculptural presence with timeless weathered steel finish

£429.00

Custom sizes available

Complimentary delivery

Delivered within 14 days, subject to stock availability

In stock

2mm thick Corten steel construction
Hard-wearing, weatherproof, low-maintenance and durable
Delivered without rust. The Corten steel rusting process takes about 4-5 months, depending on weather conditions

Available in three standard sizes:
Diameter 580mm x H 335mm (12kg)
Diameter 780mm x H 431mm (24kg)
Diameter 980mm x H 530mm (39kg)

Netherlands

Free national kerbside delivery within the UK mainland

We’re constantly finding new ways to become more sustainable, so we only select products that are built to last. We recommend looking after your Corten steel planter correctly to increase its lifespan.

The product should be unpacked immediately upon delivery to release any moisture trapped inside the packaging. If the product is left in its packaging, it may develop uneven rust patches.
The weathering process may cause rust run-off.
The guarantee expires if you drill or grind in a way that is not specified.
Clean annually by spraying coarse dirt off the product with tap water.

5 year manufacturer's structural warranty

Q) Will my planters arrive rusty?

A) All planters are dispatched un-rusted. The rusting process will start as soon as you place them outside.

Q) How long will the planter take to rust?

A) This is dependant on the weather, but the natural process can take anywhere between 3 and 12 months.

Q) Do the the planters have drainage holes?

A) Yes, all planters have a minimal amount of drainage holes, which allows our customers to drill more if required.

Q) Do you make custom sized planters?

A) Yes! Just let us know what size you require and we'll send you a quotation.

Q) Will the planters stain my patio?

A) This is a possibility yes, although the invisible 15mm feet raise the planter off the ground to prevent direct contact. It's certainly not a problem we ever hear about.

Q)How does delivery work?

A) The haulier will contact you 48hrs before delivery, proposing a day for delivery which you can either accept or suggest an alternative. We offer free kerbside delivery on planters less than 2.1m in size. We prefer if customers are at home to take delivery, but you can also authorise a safe place for them to be left at the front of your property. For planters larger than this, the customer is responsible for unloading.

Want to learn more? Give us a call

Elegant statement planters, reminiscent of an ancient form

Adding boldness and warmth to any garden space, the Corten Steel Onyx planters are elegant statement planters, whilst reminiscent of an ancient form. Enhancing the ambience of modern outdoor spaces, the steel oxidises naturally developing a beautiful shade of orange brown.

Constructed from 3mm Corten steel and available in a range of sizes, the Adezz Corten Steel Onyx planters are suitable in domestic gardens, commercial properties and public spaces - ideal for long and short shrubs and trees. Delivered un-rusted, the oxidised patina develops naturally when placed outside.

A living finish

Steel that matures naturally over time

Delivered to you un-rusted, Corten steel naturally develops its rich, protective patina over 8 to 10 months. The result is a unique, warm finish that strengthens with time, maturing gracefully in your garden or outdoor space.

The perfect partner

Adezz

Superior Corten steel planters made in the Netherlands

Superior quality

Adezz Corten steel planters are distinctive and stylish garden water features. Water adds atmosphere and depth to any garden space, whilst the block itself looks stunning amongst lush greenery. All water blocks include a pump and LED-lit fountains as standard, so you can enjoy this water feature at night too!

Guaranteed Corten

Corten steel is a metal alloy made by adding copper, phosphorus, silicon, nickel and chromium to iron. When exposed to air, the material forms a protective layer of rust. This natural coating prevents further corrosion, ensuring the planters last for years. Unlike many cheap foreign imports, Adezz steel is certified and guaranteed Corten steel.

Made to last

Corten steel is a metal alloy made by adding copper, phosphorus, silicon, nickel and chromium to iron. When exposed to air, the material forms a protective layer of rust. This natural coating prevents further corrosion, so the Corten planter will last for many years.

A word from the expert

Ancient inspiration, industrial execution

The Onyx takes ancient vessel forms and reimagines them in industrial Corten steel, a juxtaposition that shouldn't work but absolutely does. Wide and low with elegant proportions, these planters are perfect for shrubs and small trees that need generous root space without excessive height. Available in three sizes up to 98cm diameter, they make bold statements in domestic gardens, commercial properties, or public spaces. Built from 2mm Corten steel, they're substantial enough to anchor a design scheme while the developing orange-brown patina adds warmth and sculptural presence. The wide bowl format creates visual weight without bulk, making these ideal for minimalist schemes or traditional gardens that need contemporary counterpoint. Ancient inspiration, industrial execution, timeless appeal.