Gro-Sure Perlite 10L is a lightweight horticultural growing-medium amendment used to improve drainage and aeration in compost and potting mixes. It can help create a more open structure around plant roots and is commonly used when potting plants or preparing mixes for cuttings. Perlite does not guarantee plant growth or prevent waterlogging on its own; results depend on the overall growing medium, container drainage and watering. Mix and use it in accordance with the directions on the pack.