Pot9 Professional Rhiza

Pot9 Professional Rhiza is a premium, peat-free substrate designed with an ideal structure and enhanced biological performance in large containers. Dense yet well-aerated, it provides both excellent moisture retention and excellent drainage — supporting rapid, robust root development and strong plant growth throughout the veg and flower. The addition of rhizobacteria helps enhance nutrient uptake, increases plant immunity, and makes plants more resilient to stress and disease. Fully buffered to maintain stable pH and EC levels, it offers roots the ideal environment for helping plants reach their full potential and produce high-yielding crops. For a similar base without added the boost of beneficial bacteria, check out Pot9 Professional Basic for a clean, unbuffered alternative. If you need a substrate for seedlings or early veg, Plug Plant Starter Rhiza is a fine, biologically enhanced substrate made for seedlings and clones.