Cube6 Professional Rhiza

Cube6 Professional Rhiza is a powerhouse substrate made for vigorous vegetative growth and full-cycle cultivation in organic grows. Fully buffered to maintain stable pH and EC levels, this peat-free mix delivers the consistency needed for top-tier results — with a robust structure that supports heavy feeding schedules while maintaining exceptional moisture and oxygen balance. It’s also enriched with beneficial rhizobacteria, which enhances root development and promotes nutrient uptake, resistance to disease, and overall health and vitality. It’s particularly beneficial for cannabis strains that need strong root support and high nutrient delivery throughout both veg and flower. If you're looking for support during early veg, Cube4 Professional Rhiza offers the same microbial boost in a lighter mix. For growers running high-volume, high-efficiency setups, Slab Professional Rhiza contains the same beneficial bacteria and buffering in a slab format designed for bigger grows.