Welllllll I had it potted very shallow in scoria. Then all the roots rotted.
There is one teeny tiny root that is still growing. I think the kelp extract worked but then all the little root nubs that were starting out died (due to rot, I guess). So now I'm kind of at a loss as to what I should do, since on one hand it seems it is very prone to rot, but then on the other hand it is very dehydrated...