What can I use instead of horticultural sand?
What can I use instead of horticultural sand? Pumice and zeolite (or any kind of LECA, lightweight expanded clay aggregate) would probably make a good, inert, insoluble substitute for silica sand, although I personally prefer the more fine-grained texture of growing medium usidng silica sand rather than larger lumps such as perlite (or LECA or […]
What can I use instead of horticultural sand? Read Post »