Vermiculite

A natural mineral, used to cover seeds with excellent water-holding capacity. Can also be incorporated through growing media to improve water retention and soil aeration. Vermiculite is non-toxic and harmless, safe for commercial and personal use. It’s a clean, sterile, odourless substrate. When using to cover seeds after sowing, sprinkle an even, single layer over the area ensuring the growing media is generally covered. 400g will finely cover 10 propagation trays.