This variety can be started indoors in soil trays or pots 8-10 weeks before planting them outside. The seeds benefit from being sown about 1/4 of an inch deep in the soil. Then you should cover the pots in plastic wrap and refrigerate them for 10 days. After that time, you can remove the plastic and keep them in the bright light and at 50-75 degrees Fahrenheit. The seeds will take around 10-15 days to germinate. These prairie plants will do best when transplanted outdoors after the chance of frost has passed for your region. We recommend that you plant them in full sun to partial shade, in a location with moist soil for most of the year, and about 12-24 inches apart.