Bentonite clay is a soil conditioner and often added to soils for its cation-exchange capacity.
Added to organic soils at 2-3% and used in mineral cactus mixes up to 30% of the medium total. Can be mixed with compost and applied to sandy/silty soils to help produce a workable soil over time.
Used by cactus growers to help emulate native grow conditions for limestone and clay regions.
This is a powdered clay product