Plains Coreopsis, Coreopsis tinctoria
•Annual
•Seed Depth: 1/8 inch
•Seed Spacing: ~2 seeds every 10-16 inches
•When to Sow Outside: in the fall when soil temperatures are in the 50s
•When to Start Inside: 8-10 weeks before last frost date in spring
•Special Germination Instructions: benefits from a 30 day stratification period
•Host plant for: silvery checkerspot butterfly
•Light requirements: full sun to part shade
•Soil Requirements: medium dry average soil. moderately heat & drought tolerant
•Size: 1-3 feet tall, ~ 1 foot wide
•Flower color: yellow with maroon center
•Bloom time: summer to fall
Approximately 30 seeds