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For a compact facts layer
Derived from: Magnesium Sulfate
fire blight
This is a good fit for growers who want a highly concentrated solution that supports plant vigor
Grodan Gro-Slabs - 8 Inch buy10get10 For a compact facts layerGrodan Gro Slabs are stone wool substrate slabs designed to provide a reliable root zone foundation for soilless cultivation and consistent crop steering. As a stone wool slab and rockwool growing slab, theyre built for growers who want predictable moisture behavior and strong root development without the variability of loose media. A core advantage of Grodan Gro Slabs is the Advanced Wetting Agent, supported by inert hydrophilic binder fiber