The Aurelians and Lankgonese are both easy and suitable for winter sowing. The OT hybrids may have to be started like orientals, start them in a baggie with moist media (I prefer builders sand, a coarse gray sand-easy to see roots in) keep them warm for 6-8 weeks and see what happens, if a small bulb forms they need to go in the fridge for 6-8 weeks then sow in deep pots and they will form a leaf. If they start to grow a leaf right away they need to be sown in the light. so OT's would be suitable for winter sowing too, they just may take awhile. Keep in mind that the seedling will not put up much top growth the first year, they are busy making a bulb and need a deep container for that, and they are very picky about moisture and can rot easily. Lily seedlings seem to do very well the more crowded they are when young so deep, rather narrow pots are best. They prefer cool soil but bright light, warm, wet soil promotes rot so do not be tempted to over water during periods of high heat. If you want to move them outdoors later in the season putting the pots inside of a slightly bigger pot helps shade the bulbs and roots and keep them cooler.
Trumpet and Aurelian seedlings can grow very fast and may reach bloom size in 1 year. Different species have different rates of growth, some are slower than a dead slug. There are other methods that others use I think I have seen various posts on DG forums.
WARNING-the thrill of seeing your own seedling bloom for the first time is VERY addictive!
