Akadama (赤玉土, akadamatsuchi, red ball earth) is a naturally occurring, granular clay-like mineral used as soil for bonsai, orchids and other container-grown plants.
Akadama may also act as one component of growing medium when combined with other elements such as sand, composted bark, peat, perlite or crushed lava. The colour darkens when moist which can help the grower determine when to water a plant.
Size: Fine ⌀ 2 - 3 mm; Large ⌀ 6 - 11mm
Volume: 1 litre