Common Name: Cape Forget-Me-Not, Summer Forget-Me-Not
Short‑lived perennial/annual | Vivid cobalt‑blue star flowers | Pollinator‑attracting
For optimal germination rates, initiate seed propagation indoors under controlled conditions—unless the species exhibits a high sensitivity to root disturbance. This approach allows precise regulation of temperature, humidity, and light, improving germination consistency and seedling viability. Do not skip any recommended seed treatments, as they are essential for uniform and successful germination.
Seed Treatment
Cold Stratification: Place seeds on a moist paper towel, seal in a zip‑lock bag, and refrigerate at 1–4°C (35–40°F) for 2–3 weeks. Check weekly — if seedlings sprout early, plant immediately
When to Sow
Indoors: Sow 6–8 weeks before last frost (typically late winter to early spring)
Outdoors: Direct sow in fall (mild zones) or early spring after frost .
Optimum Germination Temperature: 18–21°C (65–70°F)
Germination Time: 10-30 days AFTER stratification
Light Requirements for Germination
Seeds need light—do not cover. Sow on surface and press lightly, as light aids germination
Use grow lights to maintain 12–16 hours of light per day.
How to Sow Indoors
• Surface sow on moist, well‑draining seed mix
• Press gently to ensure contact
• Mist to prevent seed displacement
Humidity: Use a humidity dome or clear cover to maintain consistent moisture during germination. Open the dome BRIEFLY once per day to allow fresh air in and reduce mold risk. Remove the dome entirely once seedlings emerge.
Post‑Germination Care
- Move seedlings to bright, indirect light
- Water from below or mist gently to avoid disturbing roots
- Transplant once 2–3 true leaves appear
- Harden off over 7–10 days before outdoor planting
Outdoor Stratification
For fall sowing, scatter seeds on moist soil. Cover lightly or protect with mesh. Germination begins naturally in spring.
Growing Tips
- Plant 25–30 cm (10–12 in.) apart
- Full sun to partial shade; well‑drained, average to sandy soil (pH 5.5–7.5)
- Keep soil evenly moist during germination; becomes drought-tolerant once established
- Deadhead spent blooms to prolong flowering
- Typically blooms from late spring through summer; may self-seed under favorable conditions
Cut back after first bloom to encourage a second flush or let some seed for natural reseeding