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A sheet of 36 rockwool starter cubes for germinating seeds and rooting cuttings in soilless systems. Rockwool holds water and air well, which is why it is the standard medium for hydroponic propagation. The cubes suit seed starting, cloning and transplanting into larger hydro setups. Compared with peat plugs or coco coir, rockwool is inert and gives you tighter control over nutrients, but it needs pre-soaking and pH adjustment before use.
In stockSold by PilipaneReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
This is a sheet of rock wool starter cubes for soilless cultivation. One sheet holds 36 cubes. It is used for germination, seedling cultivation and cloning, and it suits plants such as flowers and vegetables.
The rock wool retains water, so roots keep getting water and nutrients. It is reusable. The material is made from 60% diabase and 20% limestone, plus another 20% component the source does not name. It is melted at high temperature and pressed into boards, with phenolic resin added for stability.
It can be used in greenhouses, indoors or outdoors, for home gardening or larger-scale growing.
