A man-made, inert growing medium created by heating and spinning basalt rock and chalk into fibrous mats, similar in texture to wool. In cannabis cultivation, Rockwool is popular for hydroponic systems because of its excellent water retention, aeration, and drainage properties. Since it is sterile and pH-neutral, Rockwool allows for precise control over nutrient delivery, making it ideal for growers looking to optimize growth in controlled environments.
🔊 rok·wool
In the Wild — Example
Rockwool holds just enough moisture to keep clones hydrated without becoming waterlogged.
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