Callistephus Mix
Callistephus Mix
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🔍 About Callistephus Mix
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Type: Annual
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Height: 8–36 inches (20–90 cm), depending on variety
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Bloom Time: Mid to late summer through fall
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Light: Full sun
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Soil: Well-drained, fertile
📅 1. When to Sow
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Indoors: Start 6–8 weeks before last frost
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Outdoors: Direct sow after last frost (less common due to transplanting ease)
🌱 2. Starting Seeds Indoors
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Containers: Use seed trays or pots with drainage
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Soil: Use a fine, sterile seed-starting mix
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Sowing Depth: ¼ inch (6 mm) deep
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Water: Mist gently or bottom-water
🌡️ 3. Germination Conditions
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Temperature: 65–70°F (18–21°C)
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Time: Germinates in 7–14 days
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Light: Not required for germination; provide bright light after emergence
🌿 4. After Germination
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Keep seedlings under bright light or grow lights
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Thin or transplant to individual cells once they have 2–3 true leaves
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Avoid overwatering — China asters are prone to damping off
🌷 5. Transplanting Outdoors
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Timing: After last frost and hardening off (7–10 days outdoors gradually)
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Spacing: 9–15 inches apart, depending on variety
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Location: Full sun, with good air circulation to reduce disease
🌼 6. Direct Sowing Outdoors (Optional)
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After last frost: Sow directly ¼ inch deep in well-prepared soil
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Keep moist until seedlings emerge
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Thin to final spacing when large enough to handle
📌 Tips for Success
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Rotate planting locations yearly to prevent fusarium wilt (China asters are susceptible)
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Water at soil level to reduce fungal disease
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Deadhead regularly for continued bloom
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Excellent as cut flowers (harvest when flowers are half-open)
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