Grodan SBS 36/77 Cubes 18 Trays - 77 cubes per tray 1386/ctn varo__HJ-1542 desks or shelves

desks or shelves

13mm (100pk)

preventing any one area from being over- or under-ventilated

Stage 1 stops vegetation growth and initiates immediate flower production (in 90% of cases within 3-5days)

Grodan SBS 36/77 Cubes 18 Trays - 77 cubes per tray 1386/ctn varo__HJ-1542 desks or shelvesThanks to their revolutionary hydrophilic fibres, Grodan substrate slabs and blocks produced using this technology offer users considerable advantages over other propagation substrates. Tried and proven to be the best propagation substrate available. To prepare an entire tray of Rockwool cubes, prepare 3 4L of solution with Bloom Roots and pH down in a larger tray, and put the Rockwool tray into the solution. Leave it to soak one hour in the solution,