I switched my potting medium to Farfard's pro mix and I use hydrogen peroxide mixed in with the water when I water them. Since I started doing that, I've had about an 85 - 98% germination rate from seed to plant. I think root rot fungus and knat larvae are the main culprits when trying to germinate and grow plants from seeds. I am very careful NOT to over-water them. I have them sitting on a sunny window sill and by Spring have some nice starter daylily hybrids. It has worked successfully for me for about 5 years.