How can I substitute Perlite?

Any ideas?

You can use rice hulls, pumice, turface or calcined diatomaceous earth for an alternative aeration amendment.

L.E.C.A
Light expanded clay aggregate

Growstones
http://watercooledgardens.com/Growstone-Super-Soil-Aerator-1-cu-ft.html?source=googleps&gclid=CMWG7N6_67gCFed_Qgod9hQA-w

All the above have their merits, I personally like wheat hulls or rice hulls depending on what is cheapest when I need to add them. They both degrade nicely and add to the soil as they decompose.

Sand, smooth stone, styrofoam, polymer crystals, all depends on place time and what your goal/ strain selection is.

KrazyAnneBanks said:

Any ideas?

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I'm using rice hulls.

Sorghum or peat moss are about the cheapest and easiest to find. BigSteve.

bigsteve said:

Sorghum or peat moss are about the cheapest and easiest to find. BigSteve.

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Peat moss retains water as opposed to helping drainage.

Sand is also a good choice to help for drainage purposes, but perlite has tiny pores that helps hold nutrients. If you aren't going to use it (mind telling why? It works wonders in soil) then at least use the expanded clay or something that will give you other benefits.