The consistency of the water plus soil will start reminding you of a pulp and that's when I transfer the rooted ivy to their new home (pot). While I wait for the ivy to adjust to the soil pulp, I try to stir the "pulp" each day, and I add a bit of water every couple of days. That's all. It works for me. Do not put the cuttings you are trying to root in sun, keep them in a shady place.
