Selected grain size 8–20 mm
Vigorplant Agriargilla is obtained through a particular process in which high-quality clay with a pH controlled to between 6 and 7 is fired at high temperatures. The balls in Agriargilla, with a size between 8 and 20 mm, are lightweight, pleasing to the eye, clean, and free of microorganisms that may harm plants. The balls of expanded clay in Agriargilla are used to create a drainage layer at the bottom of pots and planters, to lighten the soil, for hydroponics, and for decorative mulching indoors and outdoors. Due to its composition and the manufacturing process, expanded clay is a very stable, long-lasting product.