I have some 20 year old hollyhock seeds...

[Botany]

9. They have germinated some lupine seeds that were > 10,000 years old

You could take some of your seeds and plant them now in flats no deeper then
1/4" but I would plant the rest next spring in flats or in the ground ..... not deep .....
about April 15th. Keep the seed in dry place but keep them in an unheated shed
or garage next fall because they might need a cold spell to help them break dormancy.

Or you can seed them into flats this fall and leave them outside over the winter but
place a piece of window screening wire mesh over the flats so you don't get random seeds
dropping into the flats.