If one watched Margie's clip of Palatine roses and soaking instructions, that is it - 10 to 12 hours the grower recommends. Fail to do so, don't go back after the Grower because roses died. I have a philosophy, if they arrived "alive", that's it. The rest is up to you, and any growers who offer a year's warranty on roses, do not have to, and should not. Just check this posting, recommendations all over the place, with only one resembling Palantine's instructions on soaking. Pretty sad!