Coreopsis Seeds,
Incredible Sea Shells Mix

Plant Incredible Sea Shells Mix after the last frost in warm weather. Seeds can be started indoors 6-8 weeks before the last frost date or sown directly outdoors once the soil has warmed in late spring. Check your local area's frost dates to determine the best planting time in your region. If you're not sure how to do it, consult our blog post 'Our Experts Answer Questions, Share Resources.'

Sow seeds on the soil surface, as they require light to germinate. When starting indoors, use a seed-starting mix and press seeds lightly onto the surface, keeping the soil moist and warm, around 70 F, during germination. For outdoor sowing, prepare a sunny, well-drained garden bed, scatter seeds on the soil, and gently press them in. Once seedlings are established, space them 10 inches apart. If transplanting, be sure to harden seedlings off before doing so.

Incredible Sea Shells Mix coreopsis thrives in full sun with at least 8-12 hours of sunlight daily. It prefers well-draining soil and is drought-tolerant once established, requiring minimal watering. Deadheading spent blooms and cutting plants back by one-third after the first flush of flowers will encourage a second round of blooms, ensuring colorful displays of flowers throughout the growing season.

• Coreopsis are insect-pollinated and there may be some crossing between varieties in the garden. You can enjoy the mixing or use caging techniques and hand pollination to avoid crossing.
• Saving seed from coreopsis is easy: simply allow the heads to brown and dry on plants and collect seeds. Store in a cool, dry, dark place over winter.