Wildflower Seeds - Summer Style Mix Includes Dahlia Pinnate, Petunia, Cosmos, etc.

Planting Season: Sow in spring after the last frost when soil has warmed to at least 65°F (18°C). Start Petunia and Dahlia seeds indoors 8–10 weeks before the last frost for earlier blooms.

Light Requirement: Full sun (at least 6–8 hours of direct sunlight daily).

Seed Prep: No special preparation required. Petunia and Dahlia seeds are fine; surface sow without covering.

Water Needs: Keep soil evenly moist during germination (7–14 days). Once established, water regularly; summer bloomers prefer consistent moisture for best flowering.

Planting Depth: Surface sow or cover very lightly. Petunia and Dahlia seeds need light for germination.

Sowing Method: Direct sow or start indoors. For best results, start Petunia and Dahlia indoors and transplant after the last frost. Cosmos can be direct sown.

Plant Spacing: Space plants 8–12 inches apart. Taller components (Dahlia) benefit from wider spacing (12–18 inches).

Hardiness Zones: Annual in all zones; Dahlia is tender perennial in zones 8–11.

Additional Tips: This mix is perfect for creating a colorful summer display that lasts until frost. Deadhead spent flowers regularly to encourage continuous blooming. Provide good air circulation to reduce fungal issues, especially for Petunia. Fertilize lightly every 4–6 weeks for best performance. Dahlia plants may require staking in windy locations.