Joe Pye Weed. Start from seeds. 3.5.15

Joe Pye Weeds to stratify.  3.5.15

I read that Joe Pye Weed seeds need to be stratified.  I bought the seeds via mail order.  This plant is considered an excellent bee and butterfly plant.  I placed the seeds on damp paper towel, in zip-lock bag.  They should be in fridge for 2 or 3 weeks, then planted.  I have a few left.  If there is a chance, I can plant those outside.