I have gotten my grubby hands on seeds of D. trinervia, D. hilaris, D. cistiflora, and D. pauciflora. While I can find information on how to cultivate them, and have grown some of them in the past, I can't find ifo on when to actually plant the seed/does it need a hot-dry stratification period/that sort of stuff. Any help would be greatly appreciated, even if its just a website that has information. Thanks in advance.