Ideal for seed or cutting propagation, the SBS (Single Block System) is supplied in their handy plastic tray for easy handling. Once young plants are well rooted, they can be transplanted to a larger cube or pot of growing medium.
Available in two sizes, 1 (25/150) and 1.5 (36/77), they are compatible with all Grodan Delta Cubes. Box 25/150 contains 2700 cubes, and box 36/77 contains 1386 cubes.
The benefits of Grodan rockwool
Completely sterile and inert ideal hydroponic growing medium. Reduced risk of pests and disease.
Even root growth predominantly vertical fibre structure means identical resistance levels for each root, so roots grow evenly.
The increased root development structure of the rockwool is designed for optimum air/water balance and accelerated rooting.
Uniformity quality and structure are uniform, so water content and EC (CF) will remain the same for every plant.
Re-wetting Grodan rockwool is easy to re-saturate if it dries out, reducing the risk of root damage.
Available in: single cubes 25mm or 36mm,
A full tray of 25mm/150 cubes and 36mm / 77 cubes,
Or a full box of 18 trays for each size.
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