I’m struggling to determine if the premium bonsai mix I purchased from a reputable bonsai nursery (equal parts akadama, pumice and lava rock) is high quality or something less. The Akadama is somewhat dusty but more importantly, crumbles easily when squeezed between my fingers. Is that what I should expect or should Akadama be harder?
Dusty, soft and crumbly would seem counterintuitive to a soil component lasting two growing seasons in a pot before breaking down, but maybe that’s a characteristic of all Akadama that I haven’t noticed in the past.
Any guidance would be appreciated.