We have a winner!
Impatiens balfourii. 20-25˚F seems to be the teetering point for seedling survival of this hardy annual. They are much more cold hardy than when they are full grown. It's not uncommon for the earliest risers here to be killed by an early spring low temperature dip. But there are always more...
Acorns back atchya, Chelle. Hope any forays you have with Frit seeds are fruitful. They aren't always the easiest doers.
