Looking for a high-porosity growing mix for indoor crops? Try Sunshine Mix #4 High Porosity, which is formulated for professional growing. It is long-lasting, fast-draining, and lightweight.
The standard of excellence in indoor growing, Sunshine #4 has mycorrhizae and silica in the mix to maximize plant productivity throughout the lifecycle.
Sunshine® Black Bear® Indoor & Outdoor Potting Mix is formulated with Black Bear® biochar which prevents C02 greenhouse gas from entering the environment.
The control allow you to choose the seal time for more versatility when using different types of bags and gives you complete control of the vacuum pressure when manually using the pulse function, to avoid damaging more delicate items.
This medium is designed to drain off excess water from the base of the cutting or seed, yet provide for the proper balance of air/water needed for good root development.