This Horticultural Grit Sandcomes from the Royal Horticultural Society and is ideal for mixing with composts, marking out seed beds and greenhouse capillary benches. This sand is completely lime free and is fine grade This item will be delivered with care and will need someone to supervise its arrival, due to its weight. Royal Horticultural Society endorsed Lime free washed fine grade Ideal for mixing with composts for seed sowing & root cuttings Useful for marking out seed beds Good for improving heavy soils