All Good Things Organic Seeds Miyashige Daikon Radish Seeds: Certified Organic, Non-GMO, Heirloom, Open Pollinated Seeds from the United States Packet: ~125 seeds (1.2 grams) Certified Organic by Oregon Tilth: OT-017423. Heirloom, Open-Pollinated, Non-GMO Seeds Approximately 50 days from seed. Annual. Grow in Early Spring to Mid-Fall In Most Climates Located in Ojai, California, United States. Plant Good Seed. Know the Source.