I recently acquired a Dendrobium Atroviolaceum x Polysema. I've read up on the culture of these types online but I was wondering if anyone has had firsthand success with them and your methods of growing. The plant I have is spiking now, with the buds on one pseudobulb almost ready to open and the other two p-bulbs are in very low spike. It has six or seven pseudobulbs but only three or four of them are full sized.