Hi Tsuh Yang-- Thanks for sending the Sinnigia seeds to the exchage; I received S bulblosa, S amambayensis, S globulsa, and S aff reitzii from the exchange and sowed them in just regular, good quality germinating mix in small plastic containers on 6/15/2008. They are all up and growing really well except for S globulsa. I used plastic bags until they germinated. Thanks again for donating them! Debbie Houston, Texas