Grodan cube 40x40x40mm - Individually or Box
Grodan produces rockwool substrate from natural volcanic rock by this is liquefied by high heat and pressed through fine nozzles.
Rockwool provides an excellent balance between nutritient and oxygen and is also very easy to carry. Thanks to these properties rockwool substrate in its various forms is the most used medium in professional plant breeding.
Grodan 40mm cubes are primarily for the rearing of seedlings or seed.
Please chose between individual cubes or boxes à 2250 pieces.
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