blomma wrote: No, never tried it but how do you know the seeds would sprouted anyway. If stored properly seed don't get too old to sprout. We would lose many plants if so. Seed sprout when conditions are right it is Natures way of assuring continuation of the specie.
Try Deno method---soaking overnight in hand hot water, then place in a 1/4th piece moist/damp kitchen paper towel. Many of us here on Daves do it that way. I do my daylily seeds that way. Check the seeds every couple of days. and when a root has formed, plant it in potting soil aiming the downwards.
Below are Columbine and Hibiscus seeds that sprouted in moist kitchen towel ready to be planted.