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The product is part of Canna's premium range of grow media
By increasing available levels of phosphorous and potassium throughout the flowering stage
Improves your plants' immune systems
Promotes the colonization of the root area with beneficial microbes
Grodan Rockwool SBS Tray Block Size:25mm - 150 Blocks per tray The product is part ofOverview The Grodan SBS Tray is ideal for seed germination or propagating cuttings. The single block system is supplied in a plastic tray for easy handling. General Information Once young plants are rooted, they can then be transferred to a larger cube or your preferred growing medium. Available in two sizes, 1" and 1. 5". Both are compatible with all Grodan Delta Cubes. A full box of the 1" SBS contains 2700 cubes. The 1. 5" box contains 1386 cubes.