All Good Things Organic Seeds Sweetheart's Finnish Heirloom Rye Seeds (~500): Certified Organic, Non-GMO, Heirloom, Open Pollinated Seeds from the United States Packet: ~500 seeds (10 grams) Certified organic by Oregon Tilth: OT-017423. Non-GMO, Heirloom Variety 330-345 days to seed. Annual. Best planted in mid-fall or late winter. Located in Ashland, Oregon and Ojai, California, United States. Plant Good Seed. Know the Source.