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These are rock wool starter cubes for hydroponic and soilless growing. The porous stonewool holds water well while letting air reach the roots, which is the standard setup for germinating seeds and rooting cuttings. They suit home hydroponic growers, balcony gardeners and classrooms running plant projects. Against peat plugs and coco coir pellets, rock wool holds more water and stays structurally stable, but it is not compostable and needs pre-soaking and pH care before use.
In stockSold by ailice099Returns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
In stockSold by HomePetDecorHub
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Lowest price we've seen: $6.49 on Nov 15 at Amazon. Tracked across 3 stores since Nov 15.
These rock wool cubes are a grow medium for soilless gardening and hydroponics. They are designed for sowing seeds and starting clones without traditional soil.
The rock wool is highly porous. It lets air through well and absorbs water strongly, which supports healthy root development.
The cubes can be used in indoor gardens, balcony planting, school laboratories and greening projects.
