It depends on where you bought them. If you received them in the mail from a U.S. nursery and they've been in a box for days, it's best to soak the roots for a couple of hours before you plant them. If you bought them from a nursery, there's no need to soak them because they've been kept moist at the nursery. Please do not soak bare-root roses from Canada or any other place that uses multiflora rootstock. There's no need to soak these at all, and soaking for more than 15-20 minutes can kill them.
