Seed Treatment:
Soak the seeds in warm water for 6–8 hours before sowing.
When to Sow:
Outdoors:
• Early spring (as soon as soil can be worked)
• In mild climates, fall sowing is ideal for early blooms
Indoors (optional):
• Start 4–6 weeks before the last frost
• Transplant carefully, as Nemophila prefers not to have its roots disturbed
Light Requirements:
• Prefers full sun to partial shade
• In hot climates, provide afternoon shade to extend blooming
Soil Requirements:
• Grows best in well-draining, moist soil
• Tolerates a variety of soil types but prefers light, loamy soil
• pH range: 6.0–7.5
Sowing Instructions:
• Sow ⅛ inch (3 mm) deep
• Lightly cover with soil and gently firm
• Keep the soil evenly moist
• Ideal germination temperature: 55–65°F (13–18°C)
• Germination occurs in 7–14 days
Watering:
• Water regularly to keep the soil consistently moist, especially during germination and flowering
• Avoid letting the soil dry out completely
Spacing:
• Thin or transplant seedlings to 6–12 inches (15–30 cm) apart
Growing Tips:
• Nemophila menziesii is a cool-season annual
• Excellent for wildflower meadows, borders, containers, and hanging baskets
• Blooms in spring to early summer
• Deadheading is not necessary but can tidy appearance
• Great for pollinator gardens and understory plantings
• Not heat-tolerant; performs best in cooler weather