Blue Slate 20mm Granite arrives in a 750kg bulk bag, ideal for pathways, driveways, and borders. The cool blue-grey tones bring a modern feel to any garden. Order today for just £225 with free UK delivery.

Made from 15-35mm natural slate granite chips, this aggregate works for both decorative and practical drainage applications. The angular chips lock together underfoot, creating a stable surface that stays in place. Spread at 40mm depth, one bag covers around 14m² — enough for a generous garden path or patio surround.

The stones are fish-friendly once washed, making them suitable for pond borders and water features. Blue slate tones deepen when wet, giving your garden a rich, polished appearance after rainfall. They pair well with contemporary planting schemes and contrast beautifully against green foliage.