GS Extensive Roof Garden Substrate

GS Extensive Roof Garden Substrate from Gardener Supplies is a lightweight, high-performance growing media designed specifically for shallow green roof projects. Ideal for low-maintenance applications such as sedum roofs, this substrate ensures rapid plant establishment and healthy growth, helping your vegetation thrive even in challenging roof conditions. Its lightweight formulation reduces structural load while maintaining excellent water retention, aeration, and nutrient availability, making it the professional choice for architects, landscapers, and green roof contractors.

Manufactured from premium ingredients, GS Extensive Roof Garden Substrate offers consistent quality and reliability, delivering professional results quickly. It is simple to handle and install, reducing labour time while promoting strong, resilient plant growth. Whether you are working on domestic, commercial, or public green roof projects, this substrate is designed to support sustainable urban planting initiatives with minimal maintenance.

Please note: packaging may vary, but product quality remains consistent.

Features & Benefits

• Lightweight and easy to handle – Reduces roof load and simplifies installation

• Promotes rapid plant establishment – Ensures healthy growth for low-maintenance roofs

• High-quality ingredients – Consistent, reliable performance

• Ideal for extensive green roofs – Perfect for sedum and shallow vegetation projects

• Low maintenance – Supports sustainable green roof designs

• Professional-grade substrate – Trusted by landscapers and contractors

Applications

• Extensive green roofs on residential and commercial buildings

• Low-maintenance sedum roof projects

• Shallow substrate installations requiring lightweight media

• Sustainable urban landscaping projects

• Roof gardens and ecological retrofits

Sizes Available

• Bulk Bag: Approx 1.7m³ (forklift required for offload)

• 30 Litre Bag

Technical Specification

• Product Type | Extensive roof garden substrate

• Bulk Bag Volume | 1.7m³

• Bag Size | 30 Litre

• Weight | Lightweight for roof applications

• Composition | High-quality, lightweight growing media

• Water Retention | Optimised for shallow green roof projects

• Use | Sedum roofs, green roofs, low-maintenance planting

• Installation | Suitable for extensive roof gardens requiring minimal maintenance