Yellow Verbascum Thapsus Seeds produce biennial or short-lived perennial plants known for their tall spikes of bright yellow flowers and large, soft, woolly leaves. These hardy plants thrive in full sun and well drained soils. Suitable for garden borders, meadows, and naturalized areas, they provide vertical interest, attract pollinators, and add vibrant color to ornamental landscapes.
Features
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Biennial or short-lived perennial with bright yellow flower spikes
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Large, soft, woolly foliage
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Suitable for garden borders, meadows, and naturalized areas
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Thrives in full sun and well drained soils
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Attracts pollinators and provides vertical interest
Specifications
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Scientific Name: Verbascum thapsus
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Common Name (US): Mullein
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Seed Type / Variety: Yellow ornamental flowering variety
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Growth Habit: Biennial or short-lived perennial
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USDA Zones: 4–9
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Planting Season: Spring
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Growing Season: Late spring through summer
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Sowing Season: February–April indoors; transplant after frost
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Germination Time and Conditions: 14–21 days; moist, well drained soil at 65–70°F
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Sunlight Requirements: Full sun
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Soil Requirements: Well drained moderately fertile soil
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Watering Needs: Low to moderate; drought tolerant once established
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Mature Plant Size: 3–6 feet height; 1–2 feet spread
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Plant Spacing: 12–24 inches apart