Description
Thanks 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, then remove and drain for 5 min, then placing seeds inside each Rockwool cube.
The tray should then be placed inside a propagation unit and sprayed with the Bloom Roots or another root accelerator as the Rockwool cubes dry out.
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