3l enPerlite! The popcorn of soil additives. It's an essential component of most potting soils and a must if you only have standard garden soil on hand that doesn't drain well. Improves aeration and drainage Perfect for propagation Carefully sieved from powders Perlite is a great addition to your soil mix. It improves the aeration and drainage qualities of any soil mix. Perlite is very lightweight and a sustainable resource. Perlite is also great for