Some daylily seeds need to be stratified, those that experience dormancy. Nothing to do with the foliage description of dormancy, just seed dormancy.
However, few seeds out of my garden need to be stratified to sprout. I imagine there are actually very few daylily seeds that need to be stratified in order for them to sprout. But, what stratifying daylily seeds should accomplish would be to compress the time frame of the period of time it takes from the first seed sprouting until the last seeds sprout. In other words instead of taking over two months for all the seeds to sprout if they were stratified that period should be reduced down to somewhere between two weeks and one month roughly. Also just placing the seeds in a cold storage supposedly will not actually stratify the seeds, it needs to be cold damp storage. At least that is what I have been told and read. I tried a failed experiment this year to test that but the medium used for the test seemed to be a problem and the test was a total failure. Anyhow the science tells us it needs to be cold damp storage to actually stratify the seeds. Seeds that are harvested and then immediately planted in the ground tend to sprout rather quickly. Once they are dried and stored then it seems they might go through a dormant stage and some of them would need to be stratified.
