Prairie Sundrops Onagraceae:
An attractive species with large bright yellow flowers. It has hairy stems and four-angled fruits. It grows well from seed and under cultivation can grow into large showy colonies. Resembles Oenothera fruticosa but has hairy leaves.
Sow and Thinly cover seeds with soil medium. Use F45-55, germination in 20-50 days. If no germination, move to 32-39F for 8 weeks then back to 55F.