As part of our general preps, we've added a food plants to substitute for non edible decorative plants. This summer we planted sunflowers around our yard. About 8 grew over 10 feet tall with huge round plate sized flowers. We saved about six flowers. After two weeks of drying we scraped off the seeds, washed and dried them and finally baked them in an oven at 350 degrees (like pumpkin seeds). We enjoyed them as a snack. Huge harvest from so few plants. Will try to add photos.