ARTICLES

A Circular Base With a Future Beyond the Arrangement

Discover how Sideau® gives every fiber a second life.

By: THURSD. | 10-06-2026 | 3 min read
Sustainability
Sideau by Agra-Wool International

Sustainability in floral design is often measured by what happens during the creation. But increasingly, florists are asking a different question: what happens after the flowers are gone?

At a recent workshop hosted by Florazon, the answer became surprisingly visible. Participants explored not only how Sideau®, developed by Agra-Wool International, supports floral creations, but also what can be done with the material once its primary purpose has been fulfilled. The results offered a powerful reminder that true sustainability is about creating value long after the first use.

Watching New Life Emerge

During the workshop, seeds were germinated directly on Sideau®, demonstrating the material’s ability to support early plant development. Even more impressive was the growth of young plants in leftover pieces of Sideau® that had already been used.

What would normally be considered a residual material became a growing medium.

The experiment highlighted an important aspect of circular thinking: a material does not lose its value simply because its original task is complete. Instead, it can enter a new phase of usefulness, supporting new life and growth.

 

Growing plants on Sideau by newagefloral
Growing plants on Sideau® by @newagefloral

 

Completing the Circle

The story of Sideau® begins with basalt, a natural volcanic rock. Through an innovative production process, this raw material is transformed into a versatile floral design medium that helps florists create stable and beautiful arrangements.

 

Design with Sideau by keep.floral
Design created with Sideau® by @keep.floral

 

But the journey does not end there.

After use, leftover pieces of Sideau® can be incorporated into alternative growing substrates, helping reduce the need for conventional materials. As those organic growing systems continue their cycle, the remaining material can be added to a compost heap, blended with soil, and gradually returned to nature.

 

Growing planrs on Sideau by ramble_heath
Growing planrs on Sideau® by @ramble_heath

 

It is a simple yet meaningful sequence:

Basalt → Sideau® → substrate alternative → compost → soil enrichment → nature

Each stage enhances the material’s value and minimizes waste, creating a cycle that aligns with the principles many florists and growers strive to embrace.

 

Design created with Sideau by seasidecottage_blog
Design with ranunculus created with Sideau® by @seasidecottage_blog

 

Small Choices, Lasting Impact

For floral professionals, sustainability is rarely about one big solution. More often, it is the result of countless small decisions that collectively make a difference.

Choosing materials that continue to contribute after their initial use is one such decision. Whether supporting seed germination, serving as a component in growing media, or eventually becoming part of the natural soil cycle, Sideau® demonstrates that a floral base can have a meaningful life beyond the design bench.

 

Sideau blocks biodegradable and composted after use by mindfullywed
Sideau® blocks are entirely natural after use by @mindfullywed

 

Designing With Tomorrow in Mind

As the floral industry continues to evolve, circularity is becoming an increasingly important part of the job. Materials that can transition from design support to plant growth and eventually back into the natural environment help create a more connected and responsible future.

 

Design with Sideau by keep.floral
This design was created with Sideau®, twine, and branches as base by @keep.floral


Feature image: Design with Sideau® by @keep.floral  and photographer @dlindenlaubphotography.

 

Banner Agra-Wool Sideau Design Sheet

FAQ

Who is Sideau®?

Sideau® is perfectly suited for florists and flower arrangers who want to use a fully environmentally friendly base for their creations. Sideau® has the same use characteristics as floral foam. In contrast to floral foam, which is made from oil derivatives and phenol resin, which is plastic, Sideau® is fully biodegradable and made of Earthwool®, a natural product made from basalt, a volcanic igneous rock.

How fast does Sideau® absorb water?

A standard Sideau® block can absorb approximately 1.5 liters of water in just 1 second. It’s important not to submerge it longer than that, as over-soaking can cause surface softening. Correct hydration ensures optimal stem support and consistent performance.

 

What is the consists of Sideau®?

It consists of 97% basalt, a natural volcanic stone, bonded with a plant-based binder derived from sucrose (natural sugar). This means Sideau® is entirely natural and can be composted after use. The minerals in basalt enrich the soil, promoting healthy plant growth. Additionally, Sideau® is pH-neutral and free from harmful chemicals, making it suitable for use in natural cemeteries and recognized as a sustainable solution in many countries.

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