Why arn't my morning glories coming up?

I planted them just at the right time a week and a half ago, and i even soaked them in warm water before i planted them. But there still not coming up. I planted them in 3 different places and there are about 10 coming up in one of them. It frosted about 5 times and it didn't stop them from coming up in that one flower bed. So why aren't they coming up in the others? are they dead? Or did i just plant them just to deep.

Why arn't my morning glories coming up?
If the soil is too cool they will end up rotting instead of germinating. I always nick the seeds with a knife to penetrate the shell of the seed then soak for at least 24 hours before planting.
Reply:Some times seeds are old and won't come up, other times the seeds are really tough and you have to soak them longer or file them a little bit to encourage them to grow. You may want to take a look too and make sure some little varmint didn't eat them.
Reply:Morning glory seed don't need scarification or soaking. Mine readily seed themselves and continually sprout throughout the season. I would tend to believe that the frost did something. Are the ones coming up close to a structure/cement/rocks?? I would tend to believe you have a microclimate where the activly growing sprouts are. I would just plant some more :) (by the way, I do have a degree in horticulture so I know a little bit about plants, so whoever gave me the bad answer obviously does not know what they are talking about)