Kerrielou Cobain

I was able to find the answer in a a guide on Prarie Moon's site.  Sounds like at least some of them will.

If seed is sown untreated in the spring, some species will not germinate until the following spring after wintering over.

It's always great to find documentation after you've done something.  On the other hand, if I'd had it I might have been to intimidated to take on the project.  This year was really optimal as far as weed conditions go.  No turning back now!

If wildflower seeds requiring stratification are scattered in the spring, will they still come up the following spring?  I had some mixes I didn't get in last fall due to irrigation problems.  I went ahead and scattered them this spring, but I'm sure there are varieties that require stratification.  Will those come up next year or will going through a spring\summer "ruin" the seeds somehow?

Thanks in advance.