Soils used in landscaping and garden applications must meet defined quality standards to support healthy plant establishment and long-term performance. AS 4419 sets out the requirements for soils used in landscaping, covering physical and chemical properties including particle size distribution, pH, electrical conductivity, organic matter content, nutrient levels, and the absence of deleterious materials. Compliance with AS 4419 is commonly required by councils, landscape architects, and developers for soils supplied to public open space, residential developments, and civil landscaping projects. Western Geotechnical Laboratory Services (WGLS) provides the AS 4419 Testing Suite for Landscaping and Garden Use from our laboratory in Welshpool, Perth. Our testing supports soil suppliers, landscapers, and civil contractors across Western Australia in verifying that their materials meet specification before delivery and placement.
