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:
• Soak seeds in room-temperature water for 12–24 hours.
• Cold stratification: Place seeds between damp paper towels inside a ziplock bag.
– Refrigerate for 7–14 days at 1–4 °C (33–39 °F).
– Check regularly. If seedlings emerge, remove and plant immediately.
Best Time to Sow
• Indoors: Start 10–12 weeks before the last frost.
• Outdoors: Sow in late summer to early fall for spring blooms, or in early spring in mild climates.
Optimum Germination Temperature: 65–70 °F (18–21 °C)
• Maintain consistent temperature in a dark environment—light inhibits germination.
Germination Time: 7 to 28 days
Sowing Instructions
• Sow on the surface of a moist seed-starting mix.
• Do not expose to light—cover lightly with vermiculite or a dark dome.
• Keep medium moist but not soggy.
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.
Light Requirements After Germination
• Once seedlings sprout, use grow lights to maintain 12–16 hours of light per day.
Post-Germination Care
• Thin or transplant seedlings when they have 2–3 true leaves.
• Harden off indoor seedlings before moving outdoors.
• Space plants 15–20 cm (6–8 in) apart in the garden.
• Use well-draining, fertile soil with moderate moisture.
Growing Tips
• Pansies are cool-weather annuals or short-lived perennials.
• Deadhead regularly to prolong blooming.
• Fertilize with a balanced liquid fertilizer every 2–3 weeks.
• Mulch to retain moisture and suppress weeds.
• In hot climates, provide afternoon shade in summer.
Pollinator Friendly & Edible Flowers
• Attracts bees and butterflies.
• Edible blooms—great for salads and desserts (ensure no pesticide use).