Seed Treatment:
• Cold stratification: Place seeds in moist sand or paper towel, seal in a plastic bag, and refrigerate at 35–40°F (1–4°C) for 2–4 weeks
• Seeds are very small — do not bury deeply
When to Sow:
• Indoors: Start seeds 6–8 weeks before last frost after stratification
• Outdoors: Sow directly in late fall or early spring for natural stratification
Light Requirements:
• Grows best in full sun to partial shade
• More compact and floriferous in full sun
Soil Requirements:
• Prefers well-drained, moderately fertile soil
• Tolerates sandy or rocky soils
• pH range: 6.0–7.5
Sowing Instructions:
• Surface sow or press lightly into soil — seeds need light to germinate
• Keep soil evenly moist during germination
• Ideal temperature: 60–70°F (16–21°C)
• Germinates in 14–28 days
Watering:
• Keep soil moist during germination
• Once established, water moderately; drought tolerant when mature
Spacing:
• Thin or transplant to 12–15 inches (30–38 cm) apart
Growing Tips:
• Produces charming, 5-petaled blooms
• Blooms from early to mid-summer
• Excellent for cottage gardens, borders, and pollinator-friendly landscapes
• Attracts bees and butterflies
• Hardy in USDA Zones 5–8