Zinnia Dahlia 'Peppermint stick' mix

150 Seeds

Seeding Zinnia Dahlia 'Peppermint Stick' Mix (Zinnia elegans) is an easy, fast-growing way to get eye-catching, dahlia-flowered blooms in a mix of striped and speckled patterns—red, cream, pink, yellow, and orange. These tall, full zinnias are great for cut flowers and pollinator gardens.

Here’s how to grow them from seed:

🌼 Zinnia Dahlia 'Peppermint Stick' Mix – Seeding Guide

📅 When to Sow

Indoors (for early blooms):

• Start 4–6 weeks before your last frost

  • Example: Sow indoors in March–April if your last frost is in May

Outdoors (direct sow – easiest):

• After last frost, when soil has warmed to 60°F (16°C)

  • Usually late spring, depending on your zone

🌱 How to Sow

Soil & Location

• Full sun (6–8+ hours/day)

• Well-drained, moderately fertile soil

• Avoid high-nitrogen fertilizers—can lead to leggy growth

Sowing Depth & Spacing

• Depth: Sow seeds ¼ inch (6 mm) deep

• Spacing: Sow seeds 2–3 inches apart

  • Thin to 12–18 inches apart for tall, branching growth

🌡️ Germination

• Temperature: 70–75°F (21–24°C)

• Time: 5–10 days

• Keep soil evenly moist during germination

🌿 After Germination

• Thin seedlings once they have a couple sets of true leaves

• If grown indoors, harden off 7–10 days before transplanting outside

🌸 Blooming

• Begins 60–75 days after sowing

• Blooms continuously from summer to frost

• Fully double, dahlia-type flowers (2–4 inches) with unique speckled and bicolor petals

🪴 Care Tips

• Deadhead regularly for more blooms

• Water at the base to avoid mildew

• Pinch young plants to encourage branching

• Stake if needed in windy areas (plants can grow 2–3 feet tall)

🐝 Pollinator-Friendly

• Attracts bees, butterflies, and beneficial insects

• Excellent for cut flower gardens