Seed Preparation:
1. Soak seeds in lukewarm water for 4–6 hours.
2. Cold Stratification: Place the seeds in a damp paper towel in a ziplock for 7 days in the refrigerator.
If seedlings emerge during stratification, plant immediately.
Best Time to Sow
Indoors: 6–8 weeks before your last frost (Jan–Mar depending on zone)
Outdoors: After danger of frost has passed (Apr–May)
Germination Conditions
up to 21 days
Optimum temperature: 18–21°C (65–70°F)
Daylight needs: 12–14 hours/day (use grow lights if needed)
Planting Instructions
Soil: Well-draining, loamy soil with pH 6.0–7.0
Depth: Sow lightly on surface – press in, do not cover heavily or cover lightly with vermiculite.
Water: Mist gently to keep soil moist (not soggy)
After Germination
Move seedlings to bright light or south-facing window
Transplant: Once seedlings have 2–3 true leaves, harden off gradually
Spacing: 20–25 cm (8–10") apart in garden beds or containers
Bloom Time: Spring through summer in temperate climates
Growing Tips
Deadhead regularly to encourage more blooms
Tolerates light frost; mulch base if overwintering outdoors
Ideal for borders, containers, or cottage gardens