Rockwool (Hydro)

10 products

Rockwool is a precision growing medium commonly used in hydroponic systems and propagation. The Rockwool (Hydro) collection features sterile, inert media designed to deliver consistent moisture retention, excellent aeration, and reliable root support.

Made from spun mineral fibres, rockwool provides a stable structure that holds water evenly while allowing roots to access oxygen—making it ideal for seed starting, cuttings, and system-based growing. Its uniformity helps ensure predictable results when used with controlled watering and nutrient delivery.

Ideal for hydroponic setups, propagation trays, and system-based growing environments, Rockwool (Hydro) offers a dependable medium for growers who value consistency and control.

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$11.75

Experience superior plant growth with Grodan Improved Mini Gro Blocks (1.5x1.5x1.5"), now available in a convenient 45 pack. These mini blocks feature a new density and hydrophilic technology, ensu...

$14.95

Grodan 1.5" Round Macro Plugs are the perfect solution for achieving optimal germination and robust root development. Made from premium stonewool, these macro plugs start as basalt rock and chalk, ...

Grodan - Stonewool A-OK Starter Plugs (1.5

$18.25

Grodan Stonewool A-OK Starter Plugs (1.5") are designed to provide the ideal environment for seed and cutting propagation. Made from molten rock spun into fine fibers and compressed, these plugs of...

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from $2.25

Grodan Cress Plate is the thinnest stone wool product available, measuring just 0.3 inches. It's perfect for growing microgreens and micropropagation of plants like arugula, chives, mizuna, basil, ...

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$5.45

Grodan Improved Hugo (6x6x6") is a premium stone wool growing block designed for superior plant growth and health. Made from molten rock spun into fibers, Grodan Stonewool offers unmatched nutrien...

$3.50

Grodan Improved Jumbo (6x6x4") Stonewool Growing Block is engineered to provide optimal support for your plants throughout their growth stages. Made from molten rock spun into fine fibers, Grodan S...