Last summer I hybridized gerbera daisies and got the seeds to sprout, they were only a few inches and doing great when it got cold in fall so I had to bring them in, no seedling survived they rotted quickly no matter what I did.
I never had trouble growing seedlings only with gerbera.
So, if lets say in summer I get more seed can I freeze it until next spring and then sprout them early so by fall the plants will be bigger and possibly tolerate the indoors.