PLANTER MIX IN BULK BAGS
The Planter Mix Substrate with added Biochar is a premium, high-performance growing medium designed for use in raised planters, roof gardens, containers, and podium landscapes. Engineered to provide excellent structure, drainage, and nutrient availability, it supports a wide range of vegetation types—from ornamental perennials to small shrubs and trees. technical datasheet
Read More£188
(Excl. VAT £37.60)
-
This mix combines lightweight aggregates with carefully blended organic matter to achieve optimal water retention while preventing compaction. It is ideal for both intensive and extensive planting schemes where root development, moisture management, and structural stability are key.
- Designed to retain sufficient moisture for plant health while avoiding waterlogging.
- Provides structure and aeration that supports strong, healthy root systems.
- Suitable for rooftop and podium applications where weight is a critical factor.
- Contains balanced organic content to sustain plant growth over time without rapid degradation.
- Made with recycled or responsibly sourced materials, suitable for various planting applications.
This substrate blend is currently undergoing independent laboratory analysis by STRI (Sports Turf Research Institute) to validate physical, chemical, and biological performance. Full test reports will be made available upon completion and can be provided to clients on request.
LightweightUK Green Roof Code of Best Practise
Moisture retentiveGrowing Medium
-
Physical Properties Bulk Density when oven dried 0.70 – 0.85 g/cm³ Physical Properties Bulk Density at field capacity 0.90 – 1.00 g/cm³ Physical Properties Field capacity (% v/v) 40 – 45% Physical Properties Total porosity (%) 55 – 65% Physical Properties Porosity at field capacity (%) 15 – 20% Technical Properties Organic matter (% weight) 12 – 15% Technical Properties Electrical Conductivity (mS cm-1) 0.8 – 1.5 Technical Properties pH 6.0 – 7.0 Technical Properties Phosphate (mgl-1) 20 – 35 mg/L Technical Properties Potassium (mg l-1) 200 – 300 mg/L Technical Properties Total nitrogen (%) 0.8 – 1.2%
