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.
When to Sow Indoors: Start indoors 6–8 weeks (42–56 days) before the last expected frost.
Optimum Germination Temperature: 18–22 °C (65–72 °F). Use a heat mat to maintain steady temperatures if necessary.
Germination Time: up to 28 days
Light Requirements for Germination: Light is beneficial for germination. Sow on the surface and press seeds gently into the soil without covering. Use grow lights to maintain 12–16 hours of light per day.
How to Sow Indoors
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Use a fine, well-draining seed-starting mix
• Surface-sow seeds and gently press them into the soil
• Do not cover — seeds require light to germinate
• Mist gently to settle seeds without burying them
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
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Once seedlings have several true leaves, transplant carefully to avoid root disturbance
• Gradually harden off before moving outdoors
• Final spacing: 20–30 cm (8–12 in)
• Plant type: Perennial groundcover / ornamental flowering plant
• Mature height: approx. 30–40 cm (12–16 in)
• Prefers full sun to light partial shade and well-drained soil
Growing Tips
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Avoid waterlogged soil — drainage is essential
• Pinch young plants lightly to encourage bushier growth
• Once established, plants are moderately drought-tolerant
• Ideal for rock gardens, borders, and low-maintenance flowering areas
More guides at: bloomoutlet.com/seed-guides