Seed benefits from cold moist stratification. (fake winter) Place seed between sheets of damp paper towel and then place in zip lock bag and put in the fridge for 30 days. Remove from fridge and sow outdoors or pot up for transplants. Cover the small seeds lightly and keep the soil moist until they germinate.
Alternatively, sprinkle outdoors and wait. Germination will be less even but it will happen.