Healthy landscapes, gardens, and horticulture begin with understanding the soil and growing media beneath them. Western Geotechnical Laboratory Services (WGLS) provides a comprehensive range of landscape and horticultural testing services to Australian Standards and in-house methods, covering the full spectrum of material assessment for landscape professionals, nursery operators, garden centres, and horticulturalists. Our landscape testing suite includes the Testing Suite for Landscaping and Garden Use (AS 4419), Testing Suite for Soil Conditioners, Composts and Mulches (AS 4454), and Testing Suite for Potting Mixes (AS 3743). We also provide Dieback and Pythium Fungal Disease screening, comprehensive Soil Nutrition and Nutrient Analysis covering total nitrogen, nitrate nitrogen, phosphorus, potassium, calcium, magnesium, sulphur, and trace elements, and full Irrigation Water Quality Analysis including pH, electrical conductivity, sodium absorption ratio, carbonates, and a complete major and minor element panel. These testing services support compliance with Australian Standards and help growers and landscapers make informed decisions about soil health, product quality, and plant nutrition.