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.
Keep soil evenly moist during germination. DO NOT LET IT DRY OUT—once seeds begin absorbing water (imbibition), drying can kill the seed embryo, and even brief dryness after sprouting can kill seedlings.
Seed Treatment:
No cold stratification is required.
Optional: Soak seeds in warm water for 4–6 hours before sowing to encourage faster and more even germination.
When to Sow:
Indoors: Start seeds 6–8 weeks before the last frost.
Outdoors: Sow directly in the garden after the danger of frost has passed in spring.
Sowing Instructions:
• Surface sow or cover very lightly with a fine layer of soil or vermiculite
• Press gently into moist soil—light aids germination
• Use grow lights to maintain 12–16 hours of light per day.
• Maintain a soil temperature of 65–70°F (18–21°C)
• 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.
• Germinates in 7–30 days
Watering:
• Keep soil consistently moist but not soggy during germination
• Once established, Swan River Daisy is drought-tolerant
Spacing:
• Thin or transplant seedlings 8–10 inches (20–25 cm) apart
Growing Tips:
• Brachyscome iberidifolia produces a profusion of daisy-like flowers in blue, purple, pink, or white with yellow centers
• Prefers full sun, but tolerates partial shade, especially in hot climates.
• Grows best in light, well-draining soil.
• Tolerates poor, sandy soils.
• Ideal pH: 6.0–7.5
• Ideal for borders, rock gardens, containers, and hanging baskets
• Blooms from late spring through fall
• Deadhead spent flowers to extend bloom time
• Excellent choice for pollinator-friendly gardens
• Usually grown as an annual, but may reseed in mild climates