Our ground is heavy clay with some compost added. I have found that if I can keep the growing edge of the rhizome just at the top of the soil it prevents rot from starting. So I start them this way, on a raised ridge area, but the next spring they are inevitably burrowing into the ground and I have to take my finger and clear out a drainage ditch for them. Last year with a catastrophic drought, it wasn't a big problem, but this year we have had rain rain and more rain. Do you think the problem is not firming the soil down enough when I plant them?
