Ten (10) litre bag of PERLITE. Vermiculite has excellent water holding capabilities makes it an excellent addition to sandy soils or dried out ground.
Perlite is a natural pH neutral sterile growing medium derived from volcanic rock. Perlite is a great product to improve the aeration and drainage of your soil. You can use Perlite to aid in the breaking up of heavy soils. Simply mix with potting soil and it will keep the soil loose and light. We tend to mix it between 30% and 50% with our multi-purpose compost for chillies.