Sixty days to April 1!
Some of the seeds I have bought need 60 days of cold and wet to germinate well, according to the place I bought them from (Prairie Moon), so I have been sowing them already. These are species of wildflower native to the US, designed by nature to need this tretment to germinate well. Besides, it reminds me that spring is not that far away!
Before I learned about stratification and winter sowing, I would buy packets of seed and wonder why only a few - or none! - would sprout. Now I know! You'd think the seed companies would be a bit more informative.