About a month or two ago I received the largest Arisaema griffithii bulb I've ever seen (in books or otherwise). I potted it in a 16" diameter clay pot in a fast draining mix of almost pure bark and leaf mould. It had started a nub when I planted it so assumed it would emerge soon I finally dug down an the nub had grown some and then stopped. I haven't dug farther to see if it's formed roots yet. Does the nub need light to progress further or more moisture?
If you're familiar with this species I'd like to hear how you grow it esp. if you grow in containers.