Vermiculite 3L
Flakes of expanded mica having undergone very high temperatures, characterized by its insulating properties, its lightness and its water retention.
SIZE 1 / FINE VERMICULITE / 1 to 3 MM (most often used in mixture with the substrate)
SIZE 2 / SUPER FINE VERMICULITE / 0.5 to 1 MM (ideal for seedlings)