Cosmos - Polidor Mix

250 seeds

About Cosmos Polidor Mix

✅ Quick Overview

• Type: Annual

• Height: 24–36" (60–90 cm)

• Bloom Time: Summer to frost

• Light: Full sun

• Soil: Well-drained, not too rich (they bloom better in lean soil)

📅 1. When to Sow

• Outdoors (Direct Sow): After danger of frost has passed, typically in mid- to late spring.

• Indoors (Optional): 4–6 weeks before last frost for earlier blooms.

🌱 2. Sowing Depth & Spacing

• Depth: Sow seeds ¼ inch (6 mm) deep.

• Spacing: Thin or transplant to 12–18 inches (30–45 cm) apart once seedlings are a few inches tall.

🪴 3. Starting Indoors

1. Fill trays or pots with light seed-starting mix.

2. Sow 1–2 seeds per cell or pot at ¼" deep.

3. Mist to moisten soil; keep warm (around 65–70°F / 18–21°C).

4. Germination takes 5–10 days.

5. Provide bright light to prevent legginess (sunny window or grow lights).

🌞 4. Direct Sowing Outdoors

1. Choose a sunny, well-drained site.

2. Sow seeds directly into prepared soil, spacing roughly 2–3" apart in rows or clusters.

3. Keep soil moist during germination.

4. Thin seedlings once established to prevent overcrowding.

🔁 5. Ongoing Care

• Water regularly until established, then only during dry spells.

• No need to fertilize heavily; rich soil leads to fewer blooms.

• Deadhead spent flowers to encourage continuous blooming.

• Tall plants may need light staking or support in windy areas.

✂️ 6. Harvesting for Cut Flowers

• Cut stems when blooms are just opening.

• Harvest in the coolest part of the day.

• Strip lower foliage and place in fresh water right away.