tsuh yang, I sow them in either the fall (October) or spring (April/May), generally as soon as I get them. I get better germination with bottom heat. The seedling mix I use is a mixture of coir, granite sand and pumice. I start them in a wet mix in plastic bags under lights. I open the bags when I see some germination, and remove them a few days later. I keep them fairly wet for the first couple of months. They seem to prefer some warmth during this period. Generally, I get either very good germination or none at all. Tom