Pot4 Professional Rhiza

Pot4 Professional Rhiza is a premium, peat-free substrate designed for strong root support — with the benefits of beneficial microbes. This medium-density blend offers excellent aeration and optimal drainage while still maintaining consistent moisture levels — making it perfect for cannabis plants in veg and early flower. Its infused with rhizobacteria, a beneficial bacteria that enhances nutrient uptake, boosts plant health and resilience, and encourages robust root growth. Ideal for organic cultivation, its buffered formula ensures stable pH and EC, giving growers complete control over nutrient choices and feeding while optimizing plant health throughout the vegetative growth stage. For a more buffered option with increased microbial activity, check out Pot9 Professional Rhiza — perfect for longer cycles or larger pots. If you’re working on a smaller scale or need a compact option with the same microbial benefits, Small Rhiza is an excellent alternative.