Circular planters.
Introducing Formline Circular Planters
The Perfect Solution for Structured, Layered Garden Design
We’re excited to introduce the latest addition to the Formline range — our new Circular Planters, designed to bring structure, simplicity, and striking visual impact to any garden.
Built with the same precision-engineered quality Formline is known for, these planters offer a clean and durable way to create perfect circular garden features, whether you’re designing a modern landscape or enhancing an existing space.
A Simple, Smart Design That Works Anywhere
Formline Circular Planters are delivered flat-packed in three parts, making them easy to transport, handle, and install on-site.
We’ve designed two simple assembly options to suit different preferences:
- Bolt-Together System (Original Design):
Secure the planter by threading the supplied bolts through the pre-drilled sections for a strong, reliable connection. - Slot-Together System (New Release):
Our latest design allows the pieces to slot seamlessly into place, reducing install time and making setup even more intuitive.
Both options are built to deliver a clean, professional finish with minimal effort.
Designed for Modern Garden Layouts
Circular forms are one of the most effective ways to soften a landscape and create visual interest. These planters are ideal for:
- Feature planting areas
- Tree surrounds
- Garden focal points
- Symmetrical landscape designs
Whether used as a standalone feature or repeated throughout a space, circular planters add a sense of balance and flow that’s hard to achieve with straight edging alone.
Create Layered Gardens — Even on Flat Ground
One of the biggest advantages of the Circular Planter range is its ability to help you build depth and layering in your garden, even if your space is completely flat.
You can achieve this by:
- Placing circular planters within larger edged areas
- Using different heights to create vertical layering
- Combining various diameters for a tiered, architectural effect
Pairing circular planters with Formline edging allows you to define outer boundaries while creating elevated focal zones in the centre — perfect for feature plants, trees, or statement landscaping.
Built to Last with Weathering Steel
The Circular Planter range is available in weathering corten steel, chosen for both its durability and natural aesthetic.
Over time, the steel develops a rich, protective patina that:
- Enhances the look of your garden
- Protects against corrosion
- Blends seamlessly into natural landscapes
This makes it an ideal material for Australian and New Zealand conditions.
Easy Installation
Installing your Circular Planter is straightforward and designed with efficiency in mind.
Watch our step-by-step installation video below to see how quickly you can assemble and position your planter.
Easy Installation
Installing your Circular Planter is straightforward and designed with efficiency in mind.
Watch our step-by-step installation video below to see how quickly you can assemble and position your planter.
The Ideal Solution for Circular Garden Design
If you’re looking to introduce curves, structure, or layered planting into your garden, Formline Circular Planters offer a practical and visually striking solution.
They’re perfect for:
- DIY gardeners
- Landscapers
- Garden designers
- Anyone looking to elevate their outdoor space
Frequently Asked Questions
Find answers to common questions about our circular planters
Our range includes multiple diameters and heights to suit different garden designs and applications.
This includes heights of 250mm, 400mm and 600mm - they all come with diametre options of 600mm, 900m and 1200mm.
Yes — with the first edition of the range having a bolt-together system and the new option coming in an even easier slot-together options, installation is quick and straightforward.
Absolutely. They’re ideal for creating layered garden designs even without natural slopes.
Corten steel develops a controlled surface patina that protects the material and gives it its signature weathering steel look.
Build Better Gardens with Formline
At Formline, we design products that give you the flexibility to create structured, long-lasting landscapes with ease. The Circular Planter range is another step toward helping you build gardens that not only look great — but stand the test of time.