Common Name: Large-Flowered Mullein 5 Short Germination Tips for Verbascum grandiflorum: Light for Germination – Do not bury seeds; press them lightly onto the soil surface, as they need light to sprout. Well-Draining Soil – Use a sandy or loamy seed-starting mix to prevent excess moisture and root rot. Cold Stratification (Optional) – For better germination, store seeds in a moist paper towel inside the fridge for 2–4 weeks before sowing. Keep Moist but Not Wet – Use a spray bottle to mist the soil, keeping it slightly damp but avoiding waterlogging. Warmth Helps Germination – Maintain temperatures around 18–22°C (65–72°F) for optimal seed sprouting.