Zinnia Magellan Scarlet

Growing zinnias from seeds is easy and rewarding. They are fast-growing annual flowers that thrive in warm weather and attract pollinators like butterflies. Here’s how you can successfully grow and care for zinnia seeds:

How to Grow Zinnias from Seeds

1. Choosing the Right Seeds

• Select a zinnia variety based on your preference for height, color, and flower type.
• Popular types include Zinnia elegans (large flowers), Zinnia angustifolia (compact, bushy plants), and Profusion Zinnias (disease-resistant hybrids).

2. When to Plant

• Direct Sowing: Best after the last frost when the soil temperature is at least 70°F (21°C).
• Indoor Starting: If you want an early start, sow seeds indoors 4-6 weeks before the last frost and transplant them later.

3. Where to Plant

• Sunlight: Full sun (at least 6-8 hours daily).
• Soil: Well-draining, moderately fertile soil with a pH of 5.5–7.5.
• Spacing: 6–18 inches apart depending on the variety to allow good air circulation.

4. Sowing the Seeds

• Direct Sowing: Scatter seeds lightly over the soil and cover with about ¼ inch of soil.
• Indoor Sowing: Plant in seed trays, lightly cover with soil, and keep them moist.
• Germination: Takes 5-10 days in warm conditions.

How to Care for Zinnias

1. Watering

• Keep soil moist but not soggy during germination.
• Once established, water deeply but allow the soil to dry between waterings (about once or twice a week).
• Water at the base to avoid wetting leaves, which can lead to fungal diseases.

2. Fertilizing

• Zinnias don’t need heavy feeding.
• Use a balanced fertilizer (10-10-10) every 2-4 weeks or mix in compost before planting.

3. Thinning and Pruning

• Thin seedlings to the strongest plants when they are 2-3 inches tall.
• Pinch back young plants to encourage bushier growth.
• Deadhead (remove spent flowers) to promote continuous blooming.

4. Preventing Pests & Diseases

• Common Pests: Aphids, spider mites, and caterpillars (use neem oil or insecticidal soap if needed).
• Diseases: Powdery mildew and leaf spots (ensure good airflow and avoid overhead watering).

Harvesting & Saving Seeds

• Zinnias bloom 6-8 weeks after planting and continue flowering until frost.
• To save seeds, let flowers dry on the plant, then collect and store seeds in a cool, dry place for next season.

By following these steps, you’ll have vibrant, long-lasting zinnia blooms all season! 🌸