I 've had a C. Rosainberg that was in limbo in my emersed tank for months. When I got it, it had two full sized leaves. It dropped one after a month. The second hung on eventually dropping. The stem end & rhizome were solid. So I left them. A month later still no change.
A few pages back Xue was talking about using sphagnum moss in a jar to revive a dormant crypt. Not having any sphagnum I substituted Oak Leave litter & just a sprinkle of MTS, enough to hold it all together. Basically, a "forrest floor" mix.I set this up the day that Xue posted on this site.
Here we are today!!!
I'll be transplanting it into MTS.