Any you save will need 30 + days of cold moist stratification in the refrigerator.
When you plant them in the ground in the Fall, Mother Nature does the stratifying for you. Same for those that you "winter" jug plant. If you do jug plant, you may need to add a bit of water if you lack snow.
When I start them indoors, I usually put in fridge in moist sand in March and then plant in seed starter trays in April. Take outside in early to mid May.
You can spread the seeds any time now til Spring outdoors.
