Seed Preparation:
Soak seeds in warm water for 4–6 hours before sowing.
Advanced growers: Gibberellic acid (GA₃) at 250 ppm can boost germination but may damage seeds if overdosed. Use only if you know how.
When to Sow
Outdoors: Sow directly after the last frost (spring) or late autumn in mild climates.
Indoors: Start 4–6 weeks before the last frost. Transplant when soil is workable.
Ideal Germination Temperature
18–22°C (64–72°F)
Germination Time: Up to 25 days
Light Needs for Germination
12–16 hrs/day of light (or grow lights) helps seedlings develop strong, compact growth.
Sowing Instructions
- Sow seeds 3–5 mm deep in well-draining soil.
- Water gently but thoroughly.
- Keep soil evenly moist until germination.
Location & Soil
- Full sun
- Tolerates poor soil; prefers well-draining loam or sandy soil
- Avoid overly rich or wet locations
After Germination Care
- Thin to 15–20 cm (6–8 in) apart when seedlings are large enough to handle.
- Water moderately—drought-tolerant once established.
- No fertilizer needed for blooms.
- Deadhead to prolong flowering or let go to seed for self-sowing.
Growing Tips
- Fast-growing annual ideal for borders, wildflower meadows, and cut flower gardens
- Bee-friendly and resistant to deer
- Excellent for dry, sunny spots
Notes
- Not invasive, but can reseed in ideal conditions
- Grows 60–90 cm tall (24–36 in) with delicate pink flowers