When should I collect the seeds? After the seed vents on the pods have opened, this is the time to collect the seeds for cooking. Save the seeds from the biggest pods for the Fall planting. Brianna Perry2023-03-20T22:30:22+00:00March 17, 2023|Planting and Growing, Poppy Seed General Information| Share This Story, Choose Your Platform! FacebookXRedditLinkedInWhatsAppTumblrPinterestEmail