I have received such rhizomes and planted them with no ill placed
increases. The increases form close to the leaves so they should not
form too far below the ground.
As you can see, the fan is at the top of the rhizome which is
positioned "directly downward." Normally, when I have planted a
rhizome, I lay it more or less horizontally on the ground and its
fan(s) stick straight up. However, if I lay this rhizome horizontally,
the fan will be virtually parallel with the ground. If I position the
fan vertically, the rhizome will be positioned straight down into the
ground, and I am wondering if it will grow and multiply to deeply under
the surface as a consequence. I feel that the latter choice must be the
correct one, but it is so different from other plants I have received
that I would like your validation.
Mike in Zone 8, South Carolina