this is what I do for the best rooting success:
3-7 days before flower, I transplant to a 5-gal container and start giving flower nutes which of course are high in P. Then I take cuts and root them in the following solution. I mix water to 200ppm with Cal-Mag, and I then raise it to 280ppm with PBP Flower. Dip my cuts in the blue RootBurst powder, and I now have the best luck rooting everything. Soak the cubes and continue watering in this solution till you transplant rooting cuttings
3-7 days before flower, I transplant to a 5-gal container and start giving flower nutes which of course are high in P. Then I take cuts and root them in the following solution. I mix water to 200ppm with Cal-Mag, and I then raise it to 280ppm with PBP Flower. Dip my cuts in the blue RootBurst powder, and I now have the best luck rooting everything. Soak the cubes and continue watering in this solution till you transplant rooting cuttings