I found a lot about soil, drainage, etc, but I only found a couple of 'iffy' answers on some forums. & the people replying didn't sound very sure.
--- In email@example.com, robert sutton <20060sutton@...> wrote:
> If you type in "Iris" after Dardanus, or even "plant", there is lots of info
> available. What I found basically says to treat them like a bearded irs,
> Rhyzome near the surface in well drained soil.
> On Sat, Oct 8, 2011 at 10:29 AM, gardens_r4_me <pdelnegro@...> wrote:
> > **
> > I just recieved my order of DARDANUS and I have not a clue how to plant
> > them. I can't find any information on the internet, either. The rhizome has
> > a cut end, an end where there was a stalk, a few nodes on the sides & its
> > kinda flat-ish. Laid out flat, I can't really tell which side is the top. I
> > think there are some remnants of roots on one side. So, do I plant it flat
> > as a cristata? vertical as a bulb? or diagonally as a peony? How deep? I
> > have found other cultural info, just not planting instructions! If anyone
> > can help, please do so. Thanks so much. Patty