Seed Treatment (Pre-Planting Preparation)
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Cold Stratification:
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Mix seeds with moist sand or a damp paper towel.
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Place in a sealed plastic bag and refrigerate at 40°F (4°C) for 3–4 weeks.
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Check regularly to ensure they remain moist but not soggy.
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Alternative Natural Stratification:
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Sow seeds outdoors in late fall for natural cold treatment over winter.
Planting Instructions
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Best Planting Time:
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Indoors: Start 6–8 weeks before the last frost.
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Outdoors: Sow directly in early spring or fall.
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Soil Requirements:
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Well-draining, moist, rich soil with a pH of 6.0–7.0.
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A mix of loam and compost works well.
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Sunlight:
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Prefers partial shade, but can tolerate full sun in cooler climates.
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Planting Depth:
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Surface sow – press seeds lightly into the soil but do not cover (light aids germination).
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Spacing:
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12–18 inches (30–45 cm) apart to allow airflow.
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Watering:
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Keep soil evenly moist but not waterlogged.
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Use a gentle misting spray to avoid disturbing seeds.
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Temperature for Germination:
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55–65°F (13–18°C).
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Germination Time:
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21–35 days (may be longer without stratification).
Care After Germination
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Thinning: Once seedlings develop two sets of true leaves, space them 12–18 inches apart.
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Fertilization: Apply a balanced liquid fertilizer every 4–6 weeks during growth.
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Mulching: A thin layer of organic mulch helps retain moisture and suppress weeds.
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Deadheading: Remove spent flowers to encourage more blooms and prevent excessive self-seeding.
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Winter Care: In cold regions, mulch lightly to protect roots. Plants will often self-seed for future growth.
? With patience, these elegant blooms will bring beauty to your garden year after year! ??