From the Ground Up: Certified Rain Garden Materials
Raingardens, also known as bio-retention systems, are precision-engineered to treat stormwater through layers of compliant sands, soils and vegetation. At Daisy’s, we help you deliver them with confidence. We coordinate the full supply chain, from Melbourne Water approved A1 filter media to A2 and A3 topsoils, supported by NATA-accredited lab testing and CPSS certification. Whether it's a streetscape, civil subdivision or council asset, our bio-retention materials arrive to spec, on time and with the compliance data required for handover.
Rain Garden Technical Capabilities
Daisy’s supplies rain garden materials engineered to meet the critical performance requirements of bio-retention systems. From Melbourne Water approved A1 filter media to certified A2 and A3 topsoils, every product is backed by NATA-accredited testing and delivered with the documentation needed for compliance. Whether your project involves council assets, subdivisions or civil infrastructure, our materials are selected for long-term function, permeability, nutrient retention and flow regulation — all verified to meet AS4419 and Melbourne Water standards.
Layer | Material | Properties | Compliance |
Filter Layer | Sandy Loam | Well-structured, free-draining, supports native vegetation | AS4419, Melbourne Water A2 & A3 |
Transition Layer | Course Sand | Prevents mixing between filter and surface layers, uniform particle distribution | Certified for Bio Retention |
Drainage Layer | Screenings | High porosity, supports unimpeded outflow | Project Specific |
When precision and compliance matter.
Rain Garden Approved Soil at Daisy's Commercial
In-House Production
Our production facilities allows full control over blending and quality, ensuring consistency and rapid supply.
Certified Testing
All soils are batch-tested at accredited labs and reviewed by Certified Professional Soil Scientists (CPSS) for compliance with required specifications.
Proven Experience
We have supplied large-scale projects across the state, with an understanding of design requirements and the importance of achieving the correct standards.
Technical Support
Our team works closely with project managers and consultants to meet both regulatory and performance needs.
Testing Certified by
