Here is seed that will produce plants with large flowers with a wide mixture of colors. A nice way to start a collection. This seed comes from the best and newest selections fron Japan.
Zones 5-8. Soak seed in a glass of hot water for three days, changing the water with fresh hot water every 24 hours. Lightly cover seeds and keep moist at room temps for 3 weeks. Place in fridge for six weeks, then move to 65F. Germination starts in one week and can last for many months. Do not dispose of ungerminated seeds but repeat above steps for year two.